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All Patents of Type: gear cutting tools
Patents 1 - 2 of 2
First set of recordsLast set of records
17,522Jun. 09, 1857G.C. SchneiderHob for Cutting Screw-Chasersgear cutting tools
136,101Feb. 18, 1873W. SellersImprovement in machines for forming cutters for cutting the teeth of wheelsgear cutting tools
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