| All Patents in class 254/8B |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 1,844,585 | Feb. 09, 1932 | R.E. Manley | High lift jack |
| | 3,967,814 | Jul. 06, 1976 | J.A. Leibundgut | High capacity hand portable jack |
| | 4,473,213 | Sep. 25, 1984 | A.F. Decker | Service jack including rack and pinion driven pump piston |
| | 5,076,448 | Dec. 31, 1991 | J.G. Ballard | Portable hydraulic crane |
| | 6,189,863 | Feb. 20, 2001 | J.H. Blackburn | Floor Jack |
| | 6,270,056 | Aug. 07, 2001 | J.H. Blackburn | Floor Jack |
| | 6,276,665 | Aug. 21, 2001 | F.H. Stewart, R.D. Brookshire, T.J. Hawkins, J.H. Blackburn, J.O. Hawkins | Mobile Floor Crane |
