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All Patents in class 417/434
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	306,679	Oct. 14, 1884	J.W. Douglas	Pump
	1,078,320	Nov. 11, 1913	J.M. Stratton	Pump
	1,109,775	Sep. 08, 1914	E. McCoy	Lubricator

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