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All Patents in class 409/39
Patents 1 - 6 of 6
First set of recordsLast set of records
638,216Dec. 05, 1899J.S. CopelandGear-cutting machinegear making machines
780,314Jan. 17, 1905L.T. WeissRack Cutting Apparatusgear making machines
806,075Nov. 28, 1905T. FawcusSpiral Gear Cutting Machinegear making machines
1,092,571Apr. 07, 1914C.J. HalborgMachine for Backing Off Hobs or Cutters for Cutting Gearsbacking off lathes
1,279,278Sep. 17, 1918M.O. CrossGear Toot Roundergear making machines
2,348,845May 16, 1944H. PelphreyMachine for Forming Gearsgear making machines
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