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All Patents in class 418/99
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	208,298	Sep. 24, 1878	J. Darling	Rotary- Engines
	314,389	Mar. 24, 1885	J.L. Mitchell	Rotary Engine
	455,863	Jul. 14, 1891	A. Cleland	Rotary Engine

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