All Patents in class 418/34


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All Patents in class 418/34
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
50,759	Oct. 31, 1865	G. Westinghouse, Jr.	Improvement in rotary steam-engines
150,350	Apr. 28, 1874	C.H. Palmer	Rotary Engines	rotary steam engines