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All Patents in class 409/10
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
1,092,571Apr. 07, 1914C.J. HalborgMachine for Backing Off Hobs or Cutters for Cutting Gearsbacking off lathes
1,753,778Apr. 08, 1930J.C. DraderRackgear cutting tools
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