| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 91/402 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 1,805,588 | May 19, 1931 | R.E. Manley | Hydraulic jack | vehicle mechanic | |
| 1,870,499 | Aug. 09, 1932 | W. Ernst | Hydraulically Operated Drop Hammer | drop hammers | |
| 2,431,619 | Nov. 25, 1947 | E.C. Read | Steam engine with keyed connection between piston rod and crosshead | steam engines | |
| 4,077,608 | Mar. 07, 1978 | R.H. Nehrig | Hydraulic hand jack | automobile and truck jacks | |