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All Patents in class 408/188
Patents 1 - 9 of 9
First set of recordsLast set of records
8,806Mar. 16, 1852J.P. OwenImprovement in machines for cutting screws on rails and posts of bedsteadsspecialty machines
28,279May 15, 1860Z.L. JacobsScrew Platetap and die holders
112,063Feb. 21, 1871J.C. MillsImprovement in Auger-Bitsadjustable drill bits
263,550Aug. 29, 1882G.B. MaletteScrew Plate
288,188Nov. 06, 1883A.J. SmartScrew-cutting machinesscrew machines
605,407Jun. 07, 1898C. Dumaw, Jr.Countersinkercountersinks
807,166Dec. 12, 1905C.W. GrantTool-holder and toollathe tool holders
881,449Mar. 10, 1908G.A. SmithThread Cutting Devicealligator wrenches
1,059,025Apr. 15, 1913F.S. BradleyDie-stock and diestap wrenches and die stocks
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