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All Patents in class 418/257
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	494,461	Mar. 28, 1893	F.H. Cathcart	Power-Driven Tool
	1,414,976	May 02, 1922	B.F. Augustine	Rotary Engine
	2,377,299	May 29, 1945	A. Von Wangenheim	Rotary Pump
	2,435,279	Feb. 03, 1948	E.F. Hubacker	Pump, vane type
	2,460,047	Jan. 25, 1949	A. Von Wangenheim	Vane Pump and Pressure Control Means

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