| All Patents in class 192/21 |
Patents 1 -
15
of 34
      |
| Number | Date | Patentee | Title | Type |
| 25,733 | Oct. 11, 1859 | J. Hendy | Double friction-coupling | industrial machine clutches |
| RE5,335 | Mar. 25, 1873 | J. Hendy | Double friction-coupling | industrial machine clutches |
| 302,841 | Jul. 29, 1884 | A.H. Hafley | Traction Engine | steam traction engines |
| 365,681 | Jun. 28, 1887 | W.S. Halsey | Lathe Head Stock | metal lathes |
| 374,908 | Dec. 13, 1887 | J.S. Bancroft, W. Sellers | Planing Machine for Metals | metal planers |
| 421,517 | Feb. 18, 1890 | F.H. Richards | Drilling Machine | drill presses |
| 491,722 | Feb. 14, 1893 | W.J. Walsh | Apparatus for Reversing Motion | industrial machine speed and direction changing mechanisms |
| 497,630 | May 16, 1893 | C.M. Conradson | Head Stock for Lathes | metal lathes |
| 497,754 | May 16, 1893 | W. Lewis | Planing Machine for Metal | metal planers |
| 520,688 | May 29, 1894 | G.W. Kramer | Steering Gear for Traction Engines | traction engine steering apparatus |
| 554,421 | Feb. 11, 1896 | C.O. Heggem | Steam Street Roller | steam rollers |
| 574,320 | Dec. 29, 1896 | A. Giesler | Electric Water Wheel Governor | water wheel governors |
| 945,464 | Jan. 04, 1910 | A.B. Landis | Universal grinder | grinders |
| 1,488,736 | Apr. 01, 1924 | C.M. Conradson | Clutch Mechanism | metalworking machine mechanisms |
| 1,505,074 | Aug. 12, 1924 | D.C. Klausmeyer | Disc Clutch Reverser | metalworking power transmission |
