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All Patents in class 411/975
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
221,299	Nov. 04, 1879	W. Gray	Nut-Lock	auxiliary wrenches
759,599	May 10, 1904	C.G. Ette	Washer
888,982	May 26, 1908	C.G. Ette	Washer

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