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| Patents for W. Marsh | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 248,587 | Oct. 25, 1881 | W. Gray | Device for Throwing Belts Onto or Off From Revolving Pulleys | |
 | 251,305 | Dec. 20, 1881 | D. Slate | Lathe-Chuck | |