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All Patents in class 409/58
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
294,844Mar. 11, 1884H. BilgramBevel-gear cuttergear making machines
1,284,543Nov. 12, 1918W.F. ZimmermannGear Planermetal shaper accessories
1,285,413Nov. 19, 1918G.A. SchipperGear Cutting Machinegear making machines
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