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Curta Calculators - Handheld Calculators (1 ene 1945 año – 31 dic 1945 año)

Descripción:

The Curta calculator was invented by Thomas de Colamar. He started this idea in 1938, but finally came out with his invention in 1945. This is a portable calculator- easy to carry around; it resembles the shape of a pepper grinder.

Añadido al timeline:

History of Calculators

BySophia Myong
26 oct 2019
0
0
259

fecha:

1 ene 1945 año
31 dic 1945 año
~ 12 months

Fotos:

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