| Patents Granted on 1939-12-12 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,182,922 | Dec. 12, 1939 | E.A. Heschel | Method of Producing a Socket Wrench Head | wrench sockets |
| 2,183,207 | Dec. 12, 1939 | D.D. Wile | Valve Structure | valves |
| 2,183,258 | Dec. 12, 1939 | J.R. Harman | Power operated router | routing machines |
| 2,183,282 | Dec. 12, 1939 | F.F. Rike | Fill box | |
| 2,183,297 | Dec. 12, 1939 | G.K. McKee, C.E. Bernitt | Machine tool | drill presses |
| 2,183,362 | Dec. 12, 1939 | G. Davenport, W.F. Zimmermann | Roller Bearing Mounted Work Table | gear making machines |
| 2,183,363 | Dec. 12, 1939 | W.F. Zimmermann | Work Table | gear hobbing machines |
| 2,183,488 | Dec. 12, 1939 | G.B. Duffield | Closure | heating apparatus |
| 2,183,514 | Dec. 12, 1939 | A.G. Ericson, B.R. Granberg | Gearing | metalworking machine gearing |
