| Patents for Eaton Mfg. Co. |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 2,240,440 | Apr. 29, 1941 | J.H. Hoern | Apparatus for Honing Internal Screw Threads | honing machines |
| 2,259,640 | Oct. 21, 1941 | J.H. Hoern | Thread Forming Apparatus | metal threading machines |
| 2,265,561 | Dec. 09, 1941 | J.H. Hoern | Method of Making Valve Tappets | internal combustion engines |
| 2,359,477 | Oct. 03, 1944 | J.H. Hoern | Method of Making Hollow Head Valves | internal combustion engine valves |
| 2,367,398 | Jan. 16, 1945 | J.H. Hoern | Thread Rolling Apparatus | metal threading machines |
| 2,456,060 | Dec. 14, 1948 | C.G. Pardee, J.H. Hoern | Rotor Grinder | cylindrical grinders |
