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All Patents in class 137/514
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	94,747	Sep. 14, 1869	B. Holly	Water Pipe Safety Valve
	754,467	Mar. 15, 1904	N. Lombard	Relief Valve
	1,112,233	Sep. 29, 1914	R.C. Stevens	Poppet Valve
	2,345,261	Mar. 28, 1944	O.M. Jensen	Power-driven hack saw machine
	2,660,954	Dec. 01, 1953	H.C. Weber	Air Volume for Water Supply Systems

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