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| All Patents in class 192/84.951 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,056,243 | Mar. 18, 1913 | A.W. Whitcomb | Double-acting clutch | metalworking power transmission | |
| 2,816,454 | Dec. 17, 1957 | A.T. Godschalx, E.E. Hosea | Positioning Means for Machine Tools | metalworking machine mechanisms | |