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All Patents in class 74/155
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	511,923	Jan. 02, 1894	J. Barrett	Jack
	680,730	Aug. 20, 1901	W.H. Oliver	Lifting-jack
	737,655	Sep. 01, 1903	W.H. Oliver	Lifting-jack
	2,633,328	Mar. 31, 1953	B.E. Wallace	Winch
	2,956,452	Oct. 18, 1960	L.A. Dever	Indexing Mechanism

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