| All Patents in class 192/94 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 7,557 | Aug. 13, 1850 | N. Barlow | Friction-clutch | industrial machine clutches |
| 78,961 | Jun. 16, 1868 | D. Harrington | Friction-Clutch Pulley | industrial machine clutches |
| 148,165 | Mar. 03, 1874 | A.B. Bean | Improvement in machinery clutches | industrial machine clutches |
| RE6,215 | Jan. 12, 1875 | A.B. Bean | Improvement in machine-clutches | industrial machine clutches |
| 174,303 | Feb. 29, 1876 | E. Reynolds | Improvement in friction-clutches | friction clutches |
| 253,175 | Feb. 07, 1882 | J.R. Back | Friction-clutch | metal lathes |
| 266,761 | Oct. 31, 1882 | F. Brown | Friction Clutch | industrial machine clutches |
| 286,906 | Oct. 16, 1883 | W.A. Clarke | Traction-engine | steam traction engines |
| 443,694 | Dec. 30, 1890 | W.J. Woodcock | Friction Clutch | |
| 655,415 | Aug. 07, 1900 | A.C. Pessano | Shifter for clutches, &c. | industrial machine clutches |
| 655,440 | Aug. 07, 1900 | F.G. Hobart | Clutch Mechanism | industrial machine clutches |
| 685,723 | Oct. 29, 1901 | T.C. Menges | Friction Clutch | clutches |
| 691,488 | Jan. 21, 1902 | C. Ridderhof | Friction-clutch for counter-shafts | friction clutches |
| 735,517 | Aug. 04, 1903 | C.W. Hunt | Friction Clutch | friction clutches |
| 812,817 | Feb. 20, 1906 | J.H. Bryan | Clutch mechanism | drill presses |
