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Calate (Manufactured by Advanced Telecommunications Equipment Ltd., Woking, England.)
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Calate 8. Featured British Calculator.
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Supacal. Featured British Calculator.
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Calcupen
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Calcupen. Featured calculator.
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Calfax
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Calfax 629
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Calfax 890P
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Calfax DataBrain II (similar to Unifive Data Brain II, aka 301).
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Calstar
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Calstar D-10
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Caltronic
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Caltronic 606, inside.
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Caltronic 612, inside.
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Caltronic 812, inside.
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Candle
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Candle 808E
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Canon (Japanese company. See the Calculator Companies section for more information.)
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Canon 8T "Sexagesimal Calculator", with time-mode.
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Canon F41
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Canon F-51. Details.
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Canon Palmtronic F-61. Details.
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Canon F71
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Canon Multi 8. Featured calculator.
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Canon Canola L812.
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Canon Canola L813.
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Canon Canola L1010. Details.
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Canon Palmtronic 8M (LD-8M3).
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Canon Palmtronic 8Ms (LD-8Ms).
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Canon Palmtronic LE-10 on charger unit, inside. Featured calculator.
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Canon Palmtronic LE-80
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Canon Palmtronic LE-80M, inside.
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Canon Palmtronic LE81. Details.
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Canon Palmtronic LE-81M, with battery pack, inside. Details.
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Canon Palmtronic LE-100. Details.
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Canon Pocketronic. (One of earliest Japanese hand-held models - Fall '70/Spring '71) Featured calculator
.
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Canon Pocketronic 2
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Canon TP8
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Carinco
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Carinco 474A (display not working properly), inside. Details.
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Casio (Japanese company. See the Calculator Companies section for more information. Also made calculators for Boots)
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Casio 8U and its twin the Sperry Remington 803C
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Casio 803MR. Details.
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Casio 805MR. Details.
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Casio AL-8. Featured calculator.
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Casio AL-8S. Featured calculator.
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Casio AL-10. Featured calculator.
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Casio College fx. Details.
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Casio CQ1.
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Casio CQ2
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Casio F2.
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Casio fx-10 and its twin the Sperry Remington SSR-8, the first Casio hand-held scientific calculator, has 10 functions so fx-10.
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Casio fx-11, inside, note the half-height zero in the display of 123456780.
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Casio fx-15
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Casio fx-19. Details.
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Casio fx-20 (note the half-height zero used in the display of this model).
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Casio fx-31.
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Casio fx-39. Details.
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Casio fx-101. Details.
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Casio fx-102
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Casio fx-110. Details.
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Casio fx-120
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Casio fx-140. Details.
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Casio H-1. Details.
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Casio H-3
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Casio J-1. Details.
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Casio J-2. Details.
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Casio J-3
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Casio J-10. Details.
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Casio J20
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Casio JR-110. Details.
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Casio Memory A-1 (aka H-814).
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Casio Memory B-1.
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Casio Memory-8. Details.
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Casio Memory-8A (aka CD-813). Details.
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Casio Memory 8-F.
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Casio Memory-10. Details.
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Casio Memory 10-F. Details.
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Casio Memory 10-GT. Details.
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Casio Mini (the first Mini version and the first Casio hand-held model). Featured calculator.
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Casio Mini (aka CM-601).
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Casio Mini (aka CM-602).
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Casio Mini (aka CM-603), inside. Details
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Casio Mini (aka CM-605).
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Casio Mini-8. Details.
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Casio Mini-Printer
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Casio personal I.
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Casio Personal M1.
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Casio Personal Mini (aka CM-606).
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Casio Personal Mini (aka CM-607), inside.
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Casio Pocket 8.
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Casio Pocket 8S
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Casio Pocket Mini (aka P810).
Casio Pocket Mini (l) and Micro Mini (r) - Micro Mini is a very early, yellow screen LCD model -- very small as you can see.
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Casio Pocket Mini (aka P812).
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Casio Root-8S
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Casio S1 (yes, battery powered!)
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Casio ST-1
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CBM (See Commodore)
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CBC (CBC International Group of Companies)
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CBC Memory PC2972. Details.
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Century
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Century Centurion. Oct 11.
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Century Mark IV (These calculators are reported to have been made for and exclusively distributed by Gulf Oil Mail Order. An address at Tinley Park, Illinois, U.S.A., is given on one of them.)
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Century Mark IV. This is featured in the Puzzle Corner page of this site.
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Bowmar Century Mark IV. Made by Bowmar. This is featured in the Puzzle Corner page of this site.
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Check Tronic (probably not the manufacturer. Please get in touch with us if you know).
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Check Tronic. Featured calculator.
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Chinon (Japanese company known for its cameras)
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Chinon 1200, inside, looks like a small version of the early Sanyo models. Details.
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Chinon 1800M. Details.
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Chinon Executron 8M (marked 8M/2 on rear) (Euro-market model)
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CI and C. Itoh
(CI Business Machines, and C. Itoh Business Machines. Both "a division of C. Itoh & Co. Ltd., Tokyo, Japan")
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CI 8005. Details.
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Dantron 8001 (C. Itoh). Details.
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Citaco
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Citaco K16, photo 2, version of Summit K16 obtained in Britain. Featured
calculator.
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Citizen (Japanese company)
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Citizen 800XL
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Citizen 801D. Details.
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Citizen 810R
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Citizen 820R.
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Citizen 820SR. Details.
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Citizen 831RD. Details.
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Citizen 850SR
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Citizen Carry M 6.
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Clever
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Clever 2101. Details.
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CO (This calculator is a bit of a puzzle and this may be part of the model number !)
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CO 12 X. Details.
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Coleco
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Coleco Lil Genius, calculator-game/teaching aid.
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Colex (Hong Kong manufacturer)
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Colex 812-SL (here also badged for Busicom). Featured British Calculator. Jun 10.
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Colex ESR "Electronic Slide Rule".
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Colex CO832D.
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Columbia Scientific (Santa Monica, California, U.S.A)
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Columbia
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Columbia Scientific - Memory II. Details.
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Columbia Scientific - Scientific
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Commodore (CBM - Commodore Business Machines - Canadian/U.S.A. company. See the Calculator Companies section for more information.)
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Commodore 5R39, inside. Details
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Commodore 9D25
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Commodore 9R23, Prinztronic X-15 (Euro-market)
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Commodore 9R25. Details.
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Commodore 385R
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Commodore 385R, Minuteman 6, Minuteman 3 Metric
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Commodore 774D, inside.
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Commodore 776M. Featured calculator.
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Commodore 784D. Details.
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Commodore 786D. Details.
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Yellow colored Commodore 796
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Commodore 796M. Featured calculator.
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Commodore 797 (2 types). Details.
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Commodore 797M (2 colours). Details.
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Commodore 885D. Details.
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Commodore 886D, inside.
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Commodore 897D.
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Commodore 899A.
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Commodore 7923.
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Commodore C12M. Details.
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Commodore C110, the first Commodore hand-held calculator, made by Bowmar. Featured calculator.
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Commodore F4146R
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Commodore F4902
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Commodore GL-97D. Details.
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Commodore GL-976M. (Marked GL 976M on calculator, GL 976MR on instruction leaflet.) Details
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Commodore GL-979D.
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Commodore GL-989R.
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Commodore GL-996R, inside.
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Commodore GL-997R, inside.
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Commodore GL-997RF.
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Commodore Minuteman 1
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Commodore Minuteman 2, aka MM2.
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Commodore Minuteman 3.
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Commodore MM2PM
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Commodore MM2SR, inside.
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Commodore MM3M, inside.
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Commodore MM3MT.
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Commodore MM3 Metric, inside, similar to the Control Metric Computer.
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JC Penney MM3R and its twin the Commodore MM3R
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Commodore MM3S.
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Commodore MM6.
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Commodore N-60 navigation calculator, has 60 keys! Featured Calculator.
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Commodore P50.
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Commodore PR 100 (two casing types).
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Commodore S61 Statistician, has 61 keys! Featured calculator.
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Commodore SR-36. Details.
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Commodore SR-1800, inside.
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Commodore SR-4148R, two varieties of key.
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Commodore SR-4190R.
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Commodore SR4912. Details.
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Commodore SR7919 cream coloured model, black coloured model.
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Commodore SR7949, inside. Details.
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Commodore SR8120, inside.
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Commodore SR9190R.
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Commodore US*4.
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Compex (Cal-Comp Electronics, Inc.)
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Compex AK10. Feb 12.
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Compex SR40
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Compex SR-55. Details.
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Compuad (Australian company)
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Compuad H8C. Details.
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Compuad SSR-2. Details.
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Compuchron
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Compuchron gold & stainless steel calculator watches. Featured calculator.
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Compucorp (U.S. comapany. See the Calculator Companies section for more information. Calculator also labelled for other companies.)
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Compucorp 320G Scientist, labelled for the British Sumlock-Anita company.
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Compucorp 322G Scientist, labelled for the Italian IME company.
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Compucorp 324G Scientist, labelled for the British Sumlock-Anita company. Featured calculator.
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Compucorp 340 Statistician.
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Compumatic (Huntsville, Alabama, U.S.A.)
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Compumatic 8A. This calculator features in the "One Hit Wonders" article.
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Comus
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Comus C-6 Diet Calculator, in Diet mode.
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Computech
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Computech M-801
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Concept
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Concept 24. Feb 12.
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Concept V. Details.
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Conic
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Conic. Details.
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Continental
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Continental 1800A, inside. Details.
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Continental. Details.
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Control Metric (Please get in touch with us if you have any information about Control Metric).
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Control Metric Computer, inside, similar to Commodore MM3 Metric. Details. Nov 11.
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Controller (Electronic Resources Ltd., HongKong)
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Controller 8. Details.
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Controller 8P. Details.
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Corvus (US company)
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Corvus 310
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Corvus 312. Feb 12.
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Corvus 400, 2 variations
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Corvus 615
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Corvus 625. Feb 12.
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3 Corvus models
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Corvus Checkmaster. Featured calculator.
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Coteco
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Coteco 888. Details.
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Craig (US company)
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Craig 4501. Featured calculator.
Bowmar 901B and Craig 4501 (these were the first hand-held calculators made in U.S.A. - Fall 1971)
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Craig 4504
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Craig 4507. Jan 12.
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Craig 4511A. Feb 12.
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Craig 4512.
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Craig 4513.
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Craig 4517.
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Craig 4519. Feb 12.
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Cybio (Nothing known about this company. If you have any information please get in touch.)
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Cybio 004m. Featured calculator.
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