| Patents for William F. Groene |
Patents 151 -
165
of 212
      |
| Number | Date | Patentee | Title | Type |
| 2,221,049 | Nov. 12, 1940 | H.J. Siekmann, W.F. Groene | Work Loading Mechanism for Lathes | crankshaft lathes |
| D125,269 | Feb. 18, 1941 | W.F. Groene | Lathe | engine lathes |
| 2,232,226 | Feb. 18, 1941 | W.R. Meyer, H.J. Siekmann, W.F. Groene | Crankshaft Lathe | metal lathe chucks |
| 2,232,227 | Feb. 18, 1941 | W.F. Groene | Crankshaft Chuck | metal lathe chucks |
| 2,232,324 | Feb. 18, 1941 | H.J. Siekmann, W.F. Groene | Orbital Lathe | metalworking machine mechanisms |
| 2,233,309 | Feb. 25, 1941 | W.F. Groene | Center Drive Lathe Loading Device | metalworking machine mechanisms |
| 2,233,310 | Feb. 25, 1941 | W.F. Groene | Crankshaft Chuck | metal lathe chucks |
| 2,233,977 | Mar. 04, 1941 | W.F. Groene | Tool Feeding Mechanism for Lathes | metalworking machine mechanisms |
| 2,236,057 | Mar. 25, 1941 | W.F. Groene, H.J. Siekmann | Power center drive chuck | metal lathe chucks |
| 2,239,443 | Apr. 22, 1941 | H.C. Kemper, W.F. Groene | Transmission Mechanism for Lathes | metalworking machine mechanisms |
| 2,247,491 | Jul. 01, 1941 | H.E. Darby, H.C. Kemper, W.F. Groene | Transmission Shifter Mechanism | metalworking machine mechanisms |
| 2,247,550 | Jul. 01, 1941 | W.F. Groene | Crankshaft Chuck | metal lathe chucks |
| D128,258 | Jul. 15, 1941 | G.W. Luning, W.F. Groene | Feed Box for Lathes | metalworking machine mechanisms |
| 2,249,240 | Jul. 15, 1941 | W.F. Groene, W.R. Meyer | Power chucking device | crankshaft lathes |
| 2,249,241 | Jul. 15, 1941 | W.R. Meyer, W.F. Groene | Work Handling Mechanism | metalworking machine mechanisms |
