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Patents for Ridge Tool Co.
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,549,164Aug. 11, 1925W.O. ThewesPipe Wrenchpipe wrenches
1,552,091Sep. 01, 1925W.O. ThewesPipe Wrenchpipe wrenches
1,727,623Sep. 10, 1929W.O. ThewesWrenchpipe wrenches
1,833,980Dec. 01, 1931W.O. ThewesPipe cutterpipe cutters
2,004,639Jun. 11, 1935W.O. ThewesDiestocktap wrenches and die stocks
2,051,755Aug. 18, 1936W.O. ThewesPipe Wrenchpipe wrenches
2,076,830Apr. 13, 1937W.O. ThewesPipe Wrenchpipe wrenches
D143,075Dec. 04, 1945C.H. IngwerPipe Cutting Toolpipe cutters
2,780,944Feb. 12, 1957E.J. OndeckReversible drive for power toolshandheld power tool accessories
3,015,246Jan. 02, 1962W. BuyerSlideable Outer Jaw Wrenchnut wrenches
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