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All Patents in class 418/202
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	1,026,887	May 21, 1912	J.H. Van Deventer	Rotary Engine
	1,046,687	Dec. 10, 1912	J.H. Van Deventer	Rotary Engine
	1,070,085	Aug. 12, 1913	J.H. Van Deventer	Rotary engine
	1,070,086	Aug. 12, 1913	J.H. Van Deventer	Rotary Engine
	2,460,310	Feb. 01, 1949	G. Rathman	Screw pump

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