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All Patents in class 62/509
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,065,485	Dec. 22, 1936	D.D. Wile	Refrigerating Apparatus
	2,558,938	Jul. 03, 1951	T.E. Noakes, E.J. Dillman	Heat Pump and Control Means

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