Patents Granted on 1923-12-11 |
Patents 1 -
6
of 6
      |
Number | Date | Patentee | Title | Type |
1,476,862 | Dec. 11, 1923 | W. Strube, H. Wagner | Valve | valves |
1,477,052 | Dec. 11, 1923 | J.D. Gibbs | Friction gearing | drill presses |
1,477,337 | Dec. 11, 1923 | G.O. Leopold, T.J. Fegley | Spiral tool | spiral screwdrivers |
1,477,374 | Dec. 11, 1923 | O.S. Marshall | Dividing Head | indexers and dividers |
1,477,426 | Dec. 11, 1923 | G.A. Carlson | Polishing machine | polishing and buffing machinery |
1,477,480 | Dec. 11, 1923 | W.F. Groene | Combined power and hand operated feed mechanism | metal lathes |