| All Patents in class 91/374 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,234,882 | Jul. 31, 1917 | W.A. Doble | Speed Governor | water wheel governors |
| 2,101,644 | Dec. 07, 1937 | L.F. Nenninger, C. Herfurth, H. Ernst | Grinding Machine | grinding machines |
| 2,101,712 | Dec. 07, 1937 | E.K. Johansen | Tracer Mechanism for Duplicating Machines | metalworking machine mechanisms |
| 2,349,838 | May 30, 1944 | C. Granqvist, H.V. Alexandersson | Micrometer | micrometers |
| 2,383,429 | Aug. 21, 1945 | G.A. Wahlmark | Hydraulically operated control mechanism | |
| 2,412,957 | Dec. 24, 1946 | F.A. Barnes | Machine tool control | milling machine accessories |
| 2,969,808 | Jan. 31, 1961 | H. Horlacher | Two-Stage Valve | hydraulic apparatus |
