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| All Patents in class 192/70.27 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 561,592 | Jun. 09, 1896 | C.H. Knight | Sawmill set-works | |
| 606,634 | Jun. 28, 1898 | T.H. Worrall, A. Lesperance | Friction-clutch | ||
 | 712,133 | Oct. 28, 1902 | F.S. Hawkins | Clutch | |
| 1,192,793 | Jul. 25, 1916 | H. Manthey | Clutch | ||
 | 1,437,319 | Nov. 28, 1922 | A.B. Landis | Automobile clutch | |
| 1,625,738 | Apr. 19, 1927 | L.F. Nenninger | Machine Tool Clutch | ||
| 1,642,642 | Sep. 13, 1927 | J.C. Carlton | Clutch Mechanism | ||