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Inventions That Shape Our World@inventionsarchive.bsky.social

Mechanical calculator (Arithmometer) Core identification details for the Arithmometer mechanical calculator. Invention Name Mechanical calculator, specifically the Arithmometer Short Definition A hand-operated calculating machine designed to perform the four basic arithmetic operations through a…

inventionsarchive.comMechanical calculator (Arithmometer)Core identification details for the Arithmometer mechanical calculator. Invention Name Mechanical calculator, specifically the Arithmometer Short Definition A hand-operated calculating machine designed to perform the four basic arithmetic operations through a geared mechanism. Approximate Date / Period 1820 patent period Based on surviving evidence Geography Paris, France; associated with Charles Xavier Thomas of Colmar Inventor / Source Culture Charles Xavier Thomas…