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| Patents for William F. Groene | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,525,127 | Oct. 10, 1950 | H.J. Siekmann, W.R. Meyer, W.F. Groene | Hydraulic feed and control mechanism | crankshaft lathes | |
| 2,612,069 | Sep. 30, 1952 | W.F. Groene | Orbital Lathe Tool Feeding Mechanism | metalworking machine mechanisms | |