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Arithmomètre T1820 |
Arithmomètre T1865 |
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© Arithmeum 2023 |
© Michael L. Hilton 2014 |
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Addition - Soustraction - Multiplication
Sur modèle Payen P1 (1888)
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Division - Racine carrée
Sur modèle Payen P1 (1888) |
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© Valéry Monnier 2012 |
© Valéry Monnier 2012 |
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Coupe d'un arithmomètre Thomas de Colmar
T1865
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Arithmomètre de type Thomas de Colmar
/ Burkhardt vers 1890 |
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© Valéry Monnier 2012 |
© Arithmeum 2023 |
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Additionneur Thomas
T1849-Adder
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Additionneur Thomas
T1849-Adder |
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© Arithmeum 2023 |
© Arithmeum 2023 |
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Arithmomètre Edmonson
Circa 1888 |
Arithmaurel de Maurel & Jayet
1854 |
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© Arithmeum 2023 |
© Arithmeum 2023 |
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© Aconit 2023 |
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"Working model of an Arithmometer by Thomas" |
"Working model of
Thomas' arithmometer 1820" |
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© Stephan Weiss |
© Stephan Weiss |
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