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All Patents in class 418/170
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
2,684,637	Jul. 27, 1954	R.W. Erikson	Gear pump
2,774,309	Dec. 18, 1956	O.W. Scheflow, L.T. Stoyke	Pump
2,787,963	Apr. 09, 1957	L.A. Dolan, B.H. Lundgren	Pump

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