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Dietzgen Compensating Polar Planimeter D1803D
$20.00 USD

Sold on: 2012-Nov-05

Marketplace: eBay
1 Treasure
0 Trash
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Detail:

This is a very old mathematical engineering instrument used for compensating polar planimeters, radial planimeters, square root planimeters, mechanical integrators, and suspended pantographs. It would...




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