| All Patents in class 254/343 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 199,955 | Feb. 05, 1878 | A. Box | Improvement in screw hoisting-pulley apparatus | hoists, winches, come-alongs |
| 291,300 | Jan. 01, 1884 | H.M. Cormack | Traction Engine | steam traction engines |
| 411,165 | Sep. 17, 1889 | O.H. Noack | Hoisting-gear | hoists, winches, come-alongs |
| 414,380 | Nov. 05, 1889 | W.W. Dingee | Elevator | elevators and lifts |
| 704,736 | Jul. 15, 1902 | D.W. Combs | Attachment for Traction Engines | steam traction engines |
| 1,650,936 | Nov. 29, 1927 | M.B. McLauthlin, J.W. Dodd | Elevator hoist | elevators and lifts |
| 2,152,969 | Apr. 04, 1939 | W.W. Nash | Balancer | handheld power tool accessories |
| 2,382,054 | Aug. 14, 1945 | L.L. Hercik | Portable crane | portable cranes |
