| Patents for William F. Groene |
Patents 91 -
105
of 212
      |
| Number | Date | Patentee | Title | Type |
| 1,934,975 | Nov. 14, 1933 | W.F. Groene | Chucking Device | metal lathe chucks |
| 1,934,976 | Nov. 14, 1933 | G.W. Luning, W.F. Groene | Crank Shaft Lathe | crankshaft lathes |
| 1,938,696 | Dec. 12, 1933 | W.F. Groene | Machine Tool | metalworking machine mechanisms |
| 1,944,231 | Jan. 23, 1934 | W.F. Groene | Lathe | engine lathes |
| 1,993,994 | Mar. 12, 1935 | H.J. Siekmann, W.F. Groene | Orbital Lathe | metalworking machine mechanisms |
| 1,993,995 | Mar. 12, 1935 | H.J. Siekmann, W.F. Groene | Orbital Lathe | metalworking machine mechanisms |
| RE19,730 | Oct. 22, 1935 | W.F. Groene | Chucking Device | metal lathe chucks |
| 2,030,020 | Feb. 04, 1936 | W.R. Meyer, W.F. Groene | Chuck | metal lathe chucks |
| 2,030,142 | Feb. 11, 1936 | G.W. Luning, W.F. Groene | Chuck | metal lathe chucks |
| RE19,905 | Mar. 31, 1936 | G.W. Luning, W.F. Groene | Crank Shaft Lathe | crankshaft lathes |
| RE20,090 | Sep. 01, 1936 | W.F. Groene | Double Center Drive Crank Shaft Lathe | crankshaft lathes |
| 2,069,107 | Jan. 26, 1937 | G.W. Luning, W.R. Meyer, W.F. Groene | Machine Tool | crankshaft lathes |
| 2,085,357 | Jun. 29, 1937 | W.F. Groene | Steady Rest for Crankshaft Lathes | crankshaft lathes |
| 2,090,119 | Aug. 17, 1937 | W.R. Meyer, W.F. Groene | Broaching Lathe | metal lathes |
| 2,097,096 | Oct. 26, 1937 | W.F. Groene | Top Feeding Mechanism for Lathes | metalworking machine mechanisms |
