| Patents for William F. Groene |
Patents 136 -
150
of 212
      |
| Number | Date | Patentee | Title | Type |
| 2,191,347 | Feb. 20, 1940 | W.F. Groene, H.J. Siekmann | Crankshaft lathe | crankshaft lathes |
| 2,191,935 | Feb. 27, 1940 | W.F. Groene | Crankshaft Lathe | crankshaft lathes |
| 2,192,436 | Mar. 05, 1940 | W.F. Groene, H.J. Siekmann | Center drive double end turret lathe | turret lathes |
| 2,192,437 | Mar. 05, 1940 | W.F. Groene, H.J. Siekmann | Spindle control mechanism | metal lathes |
| 2,193,279 | Mar. 12, 1940 | W.F. Groene, H.C. Kemper, H.E. Darby | Lathe headstock | metal lathe mechanisms |
| 2,194,203 | Mar. 19, 1940 | A.W. Aufderhar, W.F. Groene | Lathe Apron | metal lathe accessories and attachments |
| 2,197,076 | Apr. 16, 1940 | W.R. Meyer, W.F. Groene | Crankshaft Blank | crankshafts |
| 2,197,893 | Apr. 23, 1940 | W.F. Groene, R.K. Blond | Lathe headstock | metal lathe mechanisms |
| 2,198,090 | Apr. 23, 1940 | W.F. Groene, H.C. Pierle | Taper Attachment for Lathes | metal lathe accessories and attachments |
| 2,199,834 | May 07, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes | metalworking machine mechanisms |
| 2,202,287 | May 28, 1940 | W.F. Groene | Relieving attachment for lathes | metal lathe accessories and attachments |
| 2,211,722 | Aug. 13, 1940 | W.R. Meyer, W.F. Groene | Loading and Unloadng of Work in Machine Tools | metalworking machine mechanisms |
| 2,211,723 | Aug. 13, 1940 | H.C. Kemper, W.F. Groene | Taper Turning Apparatus | metalworking machine mechanisms |
| 2,214,996 | Sep. 17, 1940 | W.F. Groene, W.L. Groene | Relieving attachment | metal lathe accessories and attachments |
| 2,215,922 | Sep. 24, 1940 | H.J. si, W.F. Groene | Power Chucking Mechanism | metalworking machine mechanisms |
