| All Patents in class 91/355 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 17,914 | Aug. 04, 1857 | R. Brayton | Nut Machine | nut or bolt making machines |
| 1,575,968 | Mar. 09, 1926 | W.L. Bryant | Grinding machine | grinders |
| 1,740,744 | Dec. 24, 1929 | F.A. Parsons | Fluid Transmission and Control Means for Machine Tools | milling machines |
| 1,870,499 | Aug. 09, 1932 | W. Ernst | Hydraulically Operated Drop Hammer | drop hammers |
| 1,895,710 | Jan. 31, 1933 | H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 2,009,487 | Jul. 30, 1935 | R. Thoreson, W. Ernst | Hydraulic Press | hydraulic presses |
| 2,148,348 | Feb. 21, 1939 | W.F. Groene, H.J. Siekmann | Turret lathe | turret lathes |
| 2,157,946 | May 09, 1939 | R.D. Wortendyke | Infeed Cycle Control Mechanism for Grinding Machines | grinding machines |
| 2,365,748 | Dec. 26, 1944 | F.W. Curtis | Hydraulic Circuit | milling machines |
| 2,388,832 | Nov. 13, 1945 | W.W. Criley | Control Mechanism | machine tool controls |
| 2,454,235 | Nov. 16, 1948 | E.J. Tomek | Drilling machine | multiple spindle drill presses |
| 2,605,751 | Aug. 05, 1952 | R.D. Baumgardner, R.D. Perry | Fluid Pressure Tool Slide Control Assembly | machine tool controls |
| 3,039,441 | Jun. 19, 1962 | A.F. Hurlburt, J.G. Padelt | Photographic Camera | cameras |
| 3,075,503 | Jan. 29, 1963 | W.A. Kimsey | Hydraulic screw feed mechanism | boring and turning machines |
