Category:Portable mechanical calculators in the Ridai Museum of Modern Science

Media in category "Portable mechanical calculators in the Ridai Museum of Modern Science"

The following 19 files are in this category, out of 19 total.

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  Adall Calculator - Ridai Museum of Modern Science, Tokyo - DSC07509.JPG 3,382 × 4,486; 7.22 MB
  
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  Addiator Addition - Ridai Museum of Modern Science, Tokyo - DSC07511.JPG 3,459 × 4,880; 8.93 MB
  
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  Addometer, Taylor's, 74 Chancery Lane, London - Ridai Museum of Modern Science, Tokyo - DSC07506.JPG 5,006 × 2,235; 6.27 MB
  
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  Addometers, Taylor's, 74 Chancery Lane, London - Ridai Museum of Modern Science, Tokyo - DSC07505.JPG 5,117 × 3,088; 7.79 MB
  
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  BriCal for Compound Addition, British Calculator - Ridai Museum of Modern Science, Tokyo - DSC07503.JPG 3,131 × 2,439; 4.12 MB
  
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  British Calculator Model C - Ridai Museum of Modern Science, Tokyo - DSC07504.JPG 5,379 × 3,524; 10.02 MB
  
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  Calculating Machine - Ridai Museum of Modern Science, Tokyo - DSC07522.JPG 2,043 × 2,537; 2.39 MB
  
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  Calculator - Ridai Museum of Modern Science, Tokyo - DSC07507.JPG 5,459 × 2,368; 7.29 MB
  
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  Calculator Corp., Grand Rapids, Michigan - Ridai Museum of Modern Science, Tokyo - DSC07508.JPG 4,658 × 1,237; 2.41 MB
  
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  Curta calculators - Ridai Museum of Modern Science, Tokyo - DSC07524.JPG 5,468 × 3,044; 9.19 MB
  
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  Hand-held calculators, including Castecc Addiator and MBC Pocket Calculators - Ridai Museum of Modern Science, Tokyo - DSC07521.JPG 5,192 × 2,919; 7.26 MB
  
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  Komet SK calculator - Ridai Museum of Modern Science, Tokyo - DSC07519.JPG 3,648 × 4,985; 9.72 MB
  
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  Micca calculator - Ridai Museum of Modern Science, Tokyo - DSC07526.JPG 3,388 × 4,359; 7.75 MB
  
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  Pocket Adding Machine - Ridai Museum of Modern Science, Tokyo - DSC07514.JPG 3,295 × 3,792; 6.38 MB
  
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  Pro Calculo calculator - Ridai Museum of Modern Science, Tokyo - DSC07520.JPG 4,926 × 3,079; 7.67 MB
  
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  Produx Multator 26 - Ridai Museum of Modern Science, Tokyo - DSC07523.JPG 4,490 × 3,150; 7.55 MB
  
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  ReBo Machine a Calculer - Ridai Museum of Modern Science, Tokyo - DSC07512.JPG 2,763 × 3,333; 4.76 MB
  
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  Solo calculator - Ridai Museum of Modern Science, Tokyo - DSC07525.JPG 3,891 × 3,151; 6.37 MB
  
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  The Sun (S&N) Adding Machine for English Money, Taylor's Typewriter Co. Ltd., 74 Chancery Lane, London - Ridai Museum of Modern Science, Tokyo - DSC07516.JPG 3,568 × 4,026; 8.16 MB