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All Patents in class 418/146
Patents 1 - 4 of 4
Number	Date	Patentee	Title	Type
448,213	Mar. 17, 1891	M.P. Elgen	Rotary Engine	rotary steam engines
459,424	Sep. 15, 1891	G.A. Thomson	Rotary Engine	rotary steam engines
460,522	Sep. 29, 1891	M.J. Bretherton	Rotary Engine	rotary steam engines
616,643	Dec. 27, 1898	E.B. Tree	Rotary Engine	rotary steam engines

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