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All Patents in class 415/183
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,301,857	Nov. 10, 1942	A.A. Criqui	Blower fan
	2,727,680	Dec. 20, 1955	R.D. Madison, H.C. Burgin, W.R. Elliot, R.D. Robson	Centrifugal fan

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