Thomas De Colmar Websites
www.arithmometre.org
Les arithmomètres de Thomas de Colmar, Payen et Darras, Arithmomètre, Arithmometer, Aritmometro
Not Applicable
$
8.95
Arithmetical machines and instruments, 19th century
Les machines à calculer du 19ème siècle : une contribution à l'histoire du calcul mécanique
Not Applicable
$
8.95
Things that Count - - Things that Count
A site dealing with the history of counting, history of calculators, and history of calculating technology
Not Applicable
$
8.95
Things that Count - - Things that Count
A site dealing with the history of counting, history of calculators, and history of calculating technology
Not Applicable
$
8.95
