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American Steam Gauge & Valve Mfg. Co. Polar Planimeter |
top view (click for larger image, 68k) |
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close-up of the carriage (click for larger image, 132k) |
planimeter in its box (click for larger image, 115k) |
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Copyright © Andreas Tabak, 1998 - 2006 Last update on 21-Jul-2007 |
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