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All Patents in class 418/269
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	597,585	Jan. 18, 1898	H.J. McLoed	Rotary Engine
	1,965,388	Jul. 03, 1934	P.O. Ott	Rotary Pump
	2,460,047	Jan. 25, 1949	A. Von Wangenheim	Vane Pump and Pressure Control Means
	3,011,449	Dec. 05, 1961	W. Ernst	Vaned Hydraulic Unit

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