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All Patents in class 74/460
Patents 1 - 5 of 5
First set of recordsLast set of records
55,375Jun. 05, 1866C.T. ShoemakerImprovement in sawssaw teeth
90,365May 25, 1869J.M. JohnstonImprovement in saws and saw-teethsaw teeth
177,446May 16, 1876C. AdamsImprovement in insertible saw-teethinsertible saw teeth
190,470May 08, 1877G.H. CorlissGear-Cutting Machinegear making machines
2,126,200Aug. 09, 1938B.A. LindermanMethod of making pump gears
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