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| All Patents in class 192/108 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 731,087 | Jun. 16, 1903 | Z.R. Tucker | Carriage Reversing Mechanism for Grinding Machines | ||
| 1,126,452 | Jan. 26, 1915 | P.R. Hahnemann | Clutch | ||
| 1,669,006 | May 08, 1928 | H.L. Johnston | Clutch mechanism | ||
| 2,011,629 | Aug. 20, 1935 | F.E. Munschauer, P.R. Hahnemann | Clutch for punch presses or the like | ||
 | 2,225,091 | Dec. 17, 1940 | G.C. Wilhide | Portable power driven screw or bolt driving and nut running machine | |
| 4,060,007 | Nov. 29, 1977 | G.N. Levesque | Clutch Teeth | ||