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| All Patents in class 476/25 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 229,004 | Jun. 22, 1880 | J.L. McKee | Pulleys and Mechanism for Counter Shafting | ||
| 398,628 | Feb. 26, 1889 | H.J. Barker, F.H. Laforge | Friction Clutch | ||
| 406,586 | Jul. 09, 1889 | G. Layng | Apparatus for Reversing Rotary Motion | ||
| 623,898 | Apr. 25, 1899 | G.S. Gilman | Reversing Mechanism | ||
| 2,795,146 | Jun. 11, 1957 | U.A. Alfredeen | Reversible Rotary Tool Holder | ||