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IBM Archives > Exhibits > Antique attic, vol. 3 > 
Artifacts list for vol. 3, items M-Z >

Martres Suresnes

Logarithmic Circle

 
 
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Martres Suresnes Logarithmic Circle
 
The Martres Suresnes Logarithmic Circle was devised in France circa 1840 and was used for price calculation.