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All Patents in class 239/411
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,400,328	Dec. 13, 1921	C.G. Sprado	Internal Combustion Engine
	1,814,443	Jul. 14, 1931	M.J. Goldberg	Fuel Injector for Oil Engines
	3,022,694	Feb. 27, 1962	O.H. Nuss	Cycled jet cooling mechanism

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