| All Patents in class 91/519 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 681,873 | Sep. 03, 1901 | C.J. Carney, J.C. Gorton | Riveting Machine | riveting machines |
| 1,275,688 | Aug. 13, 1918 | T.E. Holmes | Combined Steam Hammer and Forging Press | steam hammers |
| 1,653,350 | Dec. 20, 1927 | W. Ernst | High Speed Hydraulic Press | hydraulic presses |
| 1,687,369 | Oct. 09, 1928 | F.J. Lapointe | Hydraulic broaching machine | broaching machines |
| 1,895,710 | Jan. 31, 1933 | H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 1,905,224 | Apr. 25, 1933 | C. Booth, F.S. Haas | Grinding Machinery | grinding machines |
| 2,056,908 | Oct. 06, 1936 | L.L. Schauer | Multiple hydraulic rotor drive for drill spindles | drill presses |
| 2,056,910 | Oct. 06, 1936 | L.L. Schauer | Hydraulic motor unit | metalworking machine mechanisms |
| 2,058,377 | Oct. 20, 1936 | H.G. Francis | Hydraulic press control | veneer machines |
| 2,152,837 | Apr. 04, 1939 | E. Cannon | Prefill valve for hydraulic presses | hydraulic metalworking presses |
| 2,470,415 | May 17, 1949 | E.Y. Seborg | Drive mechanism | |
| 2,501,387 | Mar. 21, 1950 | G. Haumann | Veneer lathe | veneer machines |
| 2,502,547 | Apr. 04, 1950 | C.E. Adams | Hydraulic apparatus | |
| 2,625,796 | Jan. 20, 1953 | W.A. Traut | Multispeed Hydraulic Power Device | |
| 3,913,450 | Oct. 21, 1975 | R. MacGregor | Hydraulic control system for press brakes or the like | sheet metal brakes |
