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| Patents for American Clutch Co. | |||||
| Number | Date | Patentee | Title | Type | |
| 1,272,081 | Jul. 09, 1918 | H.R. Nutting, A.B. Nutting | Clutch | industrial machine clutches | |
| 1,292,859 | Jan. 28, 1919 | H.R. Nutting, A.B. Nutting | Clutch | industrial machine clutches | |