| All Patents in class 188/151R |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 22,122 | Nov. 23, 1858 | J. Hyde | Screw-Wrench | nut wrenches |
| 301,091 | Jul. 01, 1884 | W.A. Campbell | Steam-brake for saw-mill carriages | sawmill carriages |
| 358,534 | Mar. 01, 1887 | J.R. Bisbee, F.G. Bisbee | Brake for Stationary Engines | steam engine brakes |
| 1,766,236 | Jun. 24, 1930 | F.N. Whitesell | Automatic Hoisting Apparatus | hoists, winches, come-alongs |
| 2,257,771 | Oct. 07, 1941 | L.R. Williamson | Brake | metalworking presses |
| 2,378,304 | Jun. 12, 1945 | M.T. Knutzen | Control means for power operated machinery | |
| 2,465,942 | Mar. 29, 1949 | V.v. Sundt | Headstock control mechanism for machine tools | metal lathes |
| 2,500,562 | Mar. 14, 1950 | L. Oliver | Centrifugally Operated Mechanism | metalworking machine mechanisms |
| 2,636,579 | Apr. 28, 1953 | M. De Haas | Tailstock Spindle Clamping Device | metal lathe mechanisms |
