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Patents for William F. Groene
Patents 181 - 195 of 212
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NumberDatePatenteeTitleType
2,305,868Dec. 22, 1942H.J. Siekmann, W.F. GroeneWork Handling Devicemetalworking machine mechanisms
2,310,691Feb. 09, 1943W.F. GroeneTool Holder for Lathesmetalworking machine mechanisms
2,311,591Feb. 16, 1943R.M. Bacon, W.F. GroeneStep Threading Mechanismmetalworking machine mechanisms
2,317,099Apr. 20, 1943W.F. Groene, H.J. SiekmannStep threading machinegunsmith
2,318,155May 04, 1943W.F. Groene, H.F. Stoffregen, Jr.Gun rifling machinegunsmith
2,318,305May 04, 1943W.F. GroeneCircular Shaping Apparatusmetal shapers
2,319,451May 18, 1943W.F. Groene, W.R. MeyerGun rifling machinegunsmith
2,320,983Jun. 01, 1943W.R. Meyer, W.F. GroeneCrankshaft Chuckmetal lathe chucks
2,322,127Jun. 15, 1943W.F. GroeneVertical circular shaping machinemetal shapers
2,325,849Aug. 03, 1943W.F. Groene, H.J. SiekmannSteady rest for lathesmetal lathe accessories and attachments
2,326,638Aug. 10, 1943W.F. Groene, H.J. SiekmannMachine tool coolant systemgunsmith
2,330,968Oct. 05, 1943H.J. Siekmann, W.F. GroeneMultiple Spindle Broaching Lathe Indexing Mechanismmetalworking machine mechanisms
D136,601Nov. 02, 1943W.F. GroeneLatheengine lathes
2,348,973May 16, 1944H.J. Siekmann, W.F. GroeneSpindle Control Mechanismmetalworking machine mechanisms
2,354,009Jul. 18, 1944H.J. Siekmann, W.F. GroeneCrankshaft Chuckmetal lathe chucks
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