| Patents for Cincinnati Grinders, Inc. |
Patents 406 -
412
of 412
      |
| Number | Date | Patentee | Title | Type |
| 2,303,639 | Dec. 01, 1942 | R.D. Wortendyke, C. Herfurth | Grinding Machine | grinding machines |
| 2,308,739 | Jan. 19, 1943 | G.W. Binns | Centerless Grinder | grinding machines |
| 2,327,022 | Aug. 17, 1943 | S. Einstein, H. Ernst, A.H. Dall | Surface Finishing Machinery | grinding machines |
| 2,333,304 | Nov. 02, 1943 | C. Herfurth, A.H. Dall, H. Ernst | Surface Finishing Machinery | grinding machines |
| 2,360,671 | Oct. 17, 1944 | A.C. Janke, C.O. Graves, F.S. Haas | Surface Grinder | grinding machines |
| 2,367,758 | Jan. 23, 1945 | H. Ernst, J. Decker | Grinding Machine | grinding machines |
| 2,473,711 | Jun. 21, 1949 | J. Decker, B.A. Kearns | Rotary Pump and Motor Hydraulic Transmission System | grinding machines |
