| All Patents in class 82/106 |
Patents 76 -
90
of 125
      |
| Number | Date | Patentee | Title | Type |
| 2,182,228 | Dec. 05, 1939 | W.F. Groene, W.R. Meyer | Method of machining crankshafts | crankshaft lathes |
| 2,184,591 | Dec. 26, 1939 | W.F. Groene | Orbital Lathe | metalworking machine mechanisms |
| 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 |
| 2,211,722 | Aug. 13, 1940 | W.R. Meyer, W.F. Groene | Loading and Unloadng of Work in Machine Tools | metalworking machine mechanisms |
| 2,215,922 | Sep. 24, 1940 | H.J. si, W.F. Groene | Power Chucking Mechanism | metalworking machine mechanisms |
| 2,221,049 | Nov. 12, 1940 | H.J. Siekmann, W.F. Groene | Work Loading Mechanism for Lathes | crankshaft lathes |
| 2,232,228 | Feb. 18, 1941 | W.L. Groene | Crankpin grinder | crank pin lathes |
| 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 |
| 2,233,977 | Mar. 04, 1941 | W.F. Groene | Tool Feeding Mechanism for Lathes | metalworking machine mechanisms |
| 2,233,993 | Mar. 04, 1941 | M.F. Campbell | Loading and Unloadng of Work in Machine Tools | metalworking machine mechanisms |
| 2,235,450 | Mar. 18, 1941 | W.L. Groene | Crankshaft Blank | crankshafts |
| 2,249,241 | Jul. 15, 1941 | W.R. Meyer, W.F. Groene | Work Handling Mechanism | metalworking machine mechanisms |
| 2,249,243 | Jul. 15, 1941 | W.L. Groene | Chucking Mechanism | metal lathe chucks |
