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All Patents in class 418/10
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	715,221	Dec. 02, 1902	E.C. Warren	Rotary Engine
	761,799	Jun. 07, 1904	E.C. Warren	Rotary Engine
	798,848	Sep. 05, 1905	E.C. Warren	Rotary Engine

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