| All Patents in class 192/43 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 221,266 | Nov. 04, 1879 | M.D. Harter, Executor, J. Allonas, deceased (Estate of) | Portable Engine |
| | 225,050 | Mar. 02, 1880 | C.G. Cooper | Traction Engine |
 | 651,816 | Jun. 19, 1900 | M. Backstrom | Friction driving-clutch |
 | 1,087,316 | Feb. 17, 1914 | E.R. Packer | Reversible Clutch Device |
 | 1,210,257 | Dec. 26, 1916 | B.F. Augustine | Clutch |
 | 1,508,512 | Sep. 16, 1924 | F.E. Farley | Ratchet mechanism |
 | 1,672,014 | Jun. 05, 1928 | A. Williams | Power-transmission mechanism |
| | 1,707,476 | Apr. 02, 1929 | G. Langen, R. Hohnhorst | Click Box |
 | 1,859,600 | May 24, 1932 | J.H. Prettyman | Friction Clutch Mechanism |
 | 1,981,526 | Nov. 20, 1934 | T.O. Rueb | Ratchet Wrench |
