| All Patents in class 137 |
Patents 316 -
330
of 360
      |
| Number | Date | Patentee | Title | Type |
| 2,314,827 | Mar. 23, 1943 | R.M. Hortvet | Process for extracting pure nitrogen from air | |
| 2,319,964 | May 25, 1943 | F.C. Wilson | Hydraulic press | arbor presses |
| 2,345,261 | Mar. 28, 1944 | O.M. Jensen | Power-driven hack saw machine | metal sawing machines |
| 2,360,695 | Oct. 17, 1944 | R.H. McClellan, C.E. Linden | Hydraulic gear shifting and driving system | radial drill presses |
| 2,365,748 | Dec. 26, 1944 | F.W. Curtis | Hydraulic Circuit | milling machines |
| 2,384,169 | Sep. 04, 1945 | G.E. Huck, F.O. Luenberger | Controlling pressure in a fluid-filled motor | electric motors |
| 2,403,427 | Jul. 02, 1946 | O.H. Ludeman | Valve Mechanism | steam valves |
| 2,441,339 | May 11, 1948 | S.A. Rivington | Hydraulic system | |
| 2,448,675 | Sep. 07, 1948 | P.L. Loewe | Control mechanism for a plurality of motors | |
| 2,474,134 | Jun. 21, 1949 | A.P. Waterson | Hydraulic Tool Control Unit | metalworking machine mechanisms |
| 2,592,884 | Apr. 15, 1952 | G.B. Fox, J.M. Sherman | Dishwasher | |
| 2,592,885 | Apr. 15, 1952 | G.B. Fox, J.M. Sherman | Method of and apparatus for washing dishes | |
| 2,592,886 | Apr. 15, 1952 | G.B. Fox, J.M. Sherman | Disinfectant injector for dishwashers | |
| 2,600,746 | Jun. 17, 1952 | W. Ernst | Fluid Pressure Control Valve | hydraulic apparatus |
| 2,617,622 | Nov. 11, 1952 | I.M. White | Axially Movable Rotary Valve | water valves |
