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All Patents in class 188/218R
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	526,007	Sep. 11, 1894	H. Bolthoff	Hoisting-drum
	829,594	Aug. 28, 1906	H.F. Massey	Drop hammer or stamp
	1,385,396	Jul. 26, 1921	E.E. Rayburn	Pulley

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