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All Patents in class 72/481.6
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	385,540	Jul. 03, 1888	H.J. Bierhart	Power Hammer
	1,404,126	Jan. 17, 1922	W.P. Krause	Riveter
	1,485,486	Mar. 04, 1924	J.I. Depew	Power Hammer

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