| All Patents in class 254/358 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 199,955 | Feb. 05, 1878 | A. Box | Improvement in screw hoisting-pulley apparatus | hoists, winches, come-alongs |
| 411,165 | Sep. 17, 1889 | O.H. Noack | Hoisting-gear | hoists, winches, come-alongs |
| 760,908 | May 24, 1904 | P. Mullen | Hoisting mechanism | hoists, winches, come-alongs |
| 812,137 | Feb. 06, 1906 | W.S. Kelley | Traction Engine | steam traction engines |
| 4,553,738 | Nov. 19, 1985 | L.G. Adleman, J.J. Plummer | Cable pulling device with anti-reversing clutch | electrical conduit apparatus |
| 4,555,093 | Nov. 26, 1985 | J.J. Plummer | Cable pulling device with force indicator and overload protection | electrical conduit apparatus |
