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All Patents in class 417/446
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	6,687X	Aug. 05, 1831	J. Reed	Water pump
	1,678,905	Jul. 31, 1928	M.J. Goldberg	Pressure Relief Means
	1,850,690	Mar. 22, 1932	S.B. Redfield	Retaining device for plate valves

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