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The Arithmometers of Thomas de Colmar & Payen
2014
What is new ?
Discovery of a new prototype !!
Statistics
Demonstration models
How many has survived ?
The mystery of Serial numbers
Sn 1316 modified
Instruction manuals
Videos & Simulations
1850-1910
Patents
T1820 project
Project 1820
Modelisation with Catia
www.arithmometre.org is also:
A true digital library !
Data base !
Anatomy section !
What about the models !
Long live the museums !
Thomas de Colmar
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www.arithmometre.org
www.arithmometre.org
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