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Leon Bollee,  French inventor of the first calculating machine,  1910s.
Titel Leon Bollee, French inventor of the first calculating machine, 1910s.
Caption Bollee’s (1870-1913) machine was one of the earliest of its type and was a direct multiplier with a built-in multiplication table. Later on Bollee was more interested in designing, building and racing sports cars., 6972207
Aufnahmedatum 01.01.2009
Bildnachweis Science & Society / FOTOFINDER.COM
Bildname 10300540
Bildgröße 2521px x 3504px, 21,30 cm x 29,70 cm (300 dpi)
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Land France
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Fotofinder.com Bildnummer 6972207 / 04F173AF53B8A46D