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All Patents in class 266/126
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,461,734	Feb. 15, 1949	A.L. Hartley, A.H. Davis	Flame hardening apparatus
	2,500,989	Mar. 21, 1950	W.D. Whalen, A.H. Davis, A.L. Hartley	Metallurgical apparatus

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