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| All Patents in class 192/111.15 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 447,217 | Feb. 24, 1891 | J.N. Peel, C.H. Waterous, Jr. | Friction-clutch pulley | ||
 | 499,617 | Jun. 13, 1893 | C.H. Waterous, Jr. | Clutch-pulley | |
| 526,171 | Sep. 18, 1894 | R.T. Wingo | Friction Clutch | ||
 | 561,592 | Jun. 09, 1896 | C.H. Knight | Sawmill set-works | |
 | 849,697 | Apr. 09, 1907 | J.C. Potter, J. Johnston | Clutch | |
| 1,049,957 | Jan. 07, 1913 | A.W. Whitcomb | Friction Clutch | ||
| 1,292,859 | Jan. 28, 1919 | A.B. Nutting, H.R. Nutting | Clutch | ||
| 2,324,613 | Jul. 20, 1943 | W.W. Criley | Clutch | ||