| Patents for Robert H. Eisengrein |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 2,785,318 | Mar. 12, 1957 | R.H. Eisengrein, E.W. Erikson | Automatic paralleling circuit | |
| 2,832,197 | Apr. 29, 1958 | R.H. Eisengrein, G.H. Hermanson, C.L. Sadler | Pressure regulating apparatus for a hydraulic control system | |
| 2,832,894 | Apr. 29, 1958 | D.A. Straznickas, R.H. Eisengrein, R.J. W | Automatic machine | |
| 2,885,566 | May 05, 1959 | R.H. Eisengrein, G.G. Hermanson, C.L. Sadler | Control means | |
| 3,136,936 | Jun. 09, 1964 | R.H. Eisengrein | Machine Tool Control System | machine tool controls |
