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| All Patents in class 192/103A | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 12,583 | Mar. 27, 1855 | R. Cook | Machine for Turning the Lips of Augers | |
| 606,634 | Jun. 28, 1898 | T.H. Worrall, A. Lesperance | Friction-clutch | ||