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All Patents in class 417/529
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	5,065X	Apr. 12, 1828	E. Daboll	Fire engine
	6,606X	Jun. 13, 1831	D. Smith	Labor saving pump
	7,898X	Dec. 27, 1833	J. Beckwith	Metallic pump
	9,481X	Mar. 08, 1836	L. Newton	Double force pump
	1,719,693	Jul. 02, 1929	H. Ernst	Variable Displacement Pump

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