| Patents for William F. Groene |
Patents 121 -
135
of 212
      |
| Number | Date | Patentee | Title | Type |
| 2,148,348 | Feb. 21, 1939 | W.F. Groene, H.J. Siekmann | Turret lathe | turret lathes |
| 2,148,349 | Feb. 21, 1939 | H.J. Siekmann, W.F. Groene | Orbital Lathe Feed Mechanism | metalworking machine mechanisms |
| 2,148,350 | Feb. 21, 1939 | W.F. Groene, W.R. Meyer | Crankshaft chuck | crankshaft lathes |
| 2,155,707 | Apr. 25, 1939 | W.F. Groene | Compound Rest for Lathes | metal lathes |
| 2,156,153 | Apr. 25, 1939 | W.R. Meyer, H.J. Siekmann, W.F. Groene | Multiple Spindle Vertical Crankshaft Lathe | crankshaft lathes |
| 2,160,402 | May 30, 1939 | W.F. Groene | Crankshaft Lathe | metalworking machine mechanisms |
| 2,160,966 | Jun. 06, 1939 | H.C. Kemper, W.F. Groene | Lathe Apron Mechanism | metalworking machine mechanisms |
| 2,160,967 | Jun. 06, 1939 | W.F. Groene, W.R. Meyer | Crankshaft Chuck | metal lathe chucks |
| 2,161,545 | Jun. 06, 1939 | W.F. Groene, G.W. Luning | Lathe transmission and the like | engine lathes |
| D116,951 | Oct. 03, 1939 | W.R. Meyer, W.F. Groene | Crankshaft Lathe | crankshaft lathes |
| 2,182,228 | Dec. 05, 1939 | W.F. Groene, W.R. Meyer | Method of machining crankshafts | crankshaft lathes |
| 2,184,590 | Dec. 26, 1939 | W.R. Meyer, W.F. Groene | Crankshaft Chuck | crankshaft lathes |
| 2,184,591 | Dec. 26, 1939 | W.F. Groene | Orbital Lathe | metalworking machine mechanisms |
| 2,186,168 | Jan. 09, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes | metalworking machine mechanisms |
| 2,188,594 | Jan. 30, 1940 | W.R. Meyer, W.F. Groene | Crankshaft Chuck | metal lathe chucks |
