| Patents for Willard L. Groene |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
| | 2,126,462 | Aug. 09, 1938 | E.R. Shipley, W.L. Groene | Orbital Broaching Lathe |
 | 2,173,608 | Sep. 19, 1939 | W.L. Groene | Change speed friction gearing |
| | 2,174,083 | Sep. 26, 1939 | W.L. Groene | Crankshaft Lathe |
| | 2,174,084 | Sep. 26, 1939 | W.L. Groene | Station Type Pin and Line Bearing Lathe |
| | 2,186,168 | Jan. 09, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes |
| | 2,199,834 | May 07, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes |
 | 2,214,996 | Sep. 17, 1940 | W.F. Groene, W.L. Groene | Relieving attachment |
 | 2,232,228 | Feb. 18, 1941 | W.L. Groene | Crankpin grinder |
 | 2,232,323 | Feb. 18, 1941 | W.L. Groene | Toolholder for lathes |
| | 2,235,450 | Mar. 18, 1941 | W.L. Groene | Crankshaft Blank |
