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Patents for American Tool Works Co.
Patents 76 - 90 of 124
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NumberDatePatenteeTitleType
2,066,073Dec. 29, 1936A.E. RobinsonSafety Device for Elevating or Translating Mechanismmetalworking machine mechanisms
2,074,961Mar. 23, 1937W.G. HoelscherMachine tool feeding mechanismmetal lathes
2,172,999Sep. 12, 1939W.G. HoelscherElectrically Controlled Automatic Latheautomatic lathes
2,173,557Sep. 19, 1939W.G. HoelscherTapering attachment for lathesmetal lathe accessories and attachments
2,278,262Mar. 31, 1942W.G. HoelscherCounterweight Mechanism for Drill Spindlesmetalworking machine mechanisms
2,278,263Mar. 31, 1942W.G. HoelscherSpeed Indicator Meansmetal lathe mechanisms
2,294,187Aug. 25, 1942T.A. Waltz, A. KullmanApparatus for Heat Treatingheat treating machines
2,295,516Sep. 08, 1942W.G. HoelscherHead Traverse Mechanism for Radial Drillsmetalworking machine mechanisms
2,312,839Mar. 02, 1943T.A. Waltz, A. KullmanFlame Hardening Of Rack Barsheat treating machines
2,313,438Mar. 09, 1943W.G. HoelscherFluid Operated Gear Shifting Mechanismmetalworking speed changing mechanisms
2,317,060Apr. 20, 1943W.G. HoelscherSafety Device for Radial Drill Arm Elevating Screwsmetalworking machine mechanisms
2,326,368Aug. 10, 1943C. Black, A. KullmanGear Forming Machinegear measuring machines
2,330,426Sep. 28, 1943W.G. HoelscherRadial Drillradial drill presses
2,332,381Oct. 19, 1943W.G. HoelscherLathe Spindle Speed Controlmetal lathe mechanisms
2,346,923Apr. 18, 1944T.A. Waltz, A. KullmanApparatus for Flame Hardening Racks and the Likeheat treating machines
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