| All Patents in class 192/70.15 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 463,812 | Nov. 24, 1891 | A. Lesperance | Clutch | metalworking power transmission |
| 520,528 | May 29, 1894 | E.L. Jones | Clutch | industrial machine clutches |
| 559,558 | May 05, 1896 | T.H. Worrall, A. Lesperance | Friction-clutch | metalworking power transmission |
| 835,373 | Nov. 06, 1906 | H.R. Stacks | Friction-clutch | industrial machine clutches |
| 885,075 | Apr. 21, 1908 | D.S. Oakley | Clutch | industrial machine clutches |
| 1,043,406 | Nov. 05, 1912 | R.J. Denio | Clutch | automobiles |
| 1,327,506 | Jan. 06, 1920 | M. Walker | Magnetic clutch | industrial machine clutches |
