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All Patents in class 418/148
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	11,909	Nov. 07, 1854	C. Rumley	Rotary Steam Engine
	465,907	Dec. 29, 1891	W.N. Whipple	Rotary Steam Engine
	583,897	Jun. 08, 1897	M.P. Elgen	Rotary Engine

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