The Astounding Curta Mechanical Calculator

by Rezz on December 31, 2010

Curta Mechanical Calculator pure mechanical precision engineering marvel, pure mechanical no electrical power at all. This amazing mechanical calculator is invented in 1940.

{ 1 comment… read it below or add one }

sabry ahamed October 9, 2011 at 10:39 am

it’s very nice & very technical product

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