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All Patents in class 60/320
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	432,114	Jul. 15, 1890	G.B. Brayton	Gas and Air Engine
	575,720	Jan. 26, 1897	J. Ledent	Gas Engine
	2,200,379	May 14, 1940	R.D. Williams	Utilization of Waste Engine Heat

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