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| All Patents in class 475/269 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 300,869 | Jun. 24, 1884 | H.H. Hudson | Traction Engine | ||
 | 437,068 | Sep. 23, 1890 | L.E. Whiton | Speed-changing mechanism for lathes | |
 | 1,305,616 | Jun. 03, 1919 | N.H. Norris | Combination differential direct-power drive and friction-clutch pulley | |
 | 2,033,749 | Mar. 10, 1936 | J.M. Walter | Milling machine head | |