Figure 2 - uploaded by Pierre Mounier-Kuhn
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L'Arithmomètre de 1822 (National Museum of American History, Washington). Premier exemplaire connu, d'aspect assez primitif. Pour actionner le mécanisme calculateur, une fois les chiffres positionnés, l'opérateur tirait un ruban de soie enroulé autour d'un tambour, entraînant la rotation des cylindres.
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Invented in the XVIIth century, calculating machines became a small sub-sector of the precision mechanic industry during the XIXth century. While they have been thoroughly studied from the technical point of view, their economic and business history is still largely underdocumented.
In France, between the 1820s and 1850s, several inventors-entrepr...
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