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All Patents in class 418/246
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	444,834	Jan. 20, 1891	J.W. Hayes	Rotary Engine
	453,614	Jun. 09, 1891	S.G. Brosius	Rotary Engine
	501,223	Jul. 11, 1893	J.H. Eickershoff	Steam Engine
	570,470	Nov. 03, 1896	L. Gathman	Rotary Gas Engine

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