| All Patents in class 254/124 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 168,153 | Sep. 28, 1875 | W.F. Hale | Stump puller | stump elevators |
| 917,312 | Apr. 06, 1909 | E.R. Klemm | Friction clutch mechanism | bench or pedestal grinders |
| 2,240,723 | May 06, 1941 | R.G. Stoehr | Airplane lifting and supporting system | |
| 5,088,691 | Feb. 18, 1992 | C.E. Naber, J.B. Ballard | Hydraulic apparatus including a hydraulic fluid control cartridge | engine and transmission hoists |
| 6,276,665 | Aug. 21, 2001 | F.H. Stewart, R.D. Brookshire, T.J. Hawkins, J.H. Blackburn, J.O. Hawkins | Mobile Floor Crane | cranes |
| 7,020,943 | Apr. 04, 2006 | D.W. Cronk | Lift Tool | automotive tools |
