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All Patents in class 82/71
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,166,456	Jan. 04, 1916	H.J. Hamer	Pipe-cutting machine
	2,596,062	May 06, 1952	N.D. Abbey	Tube cutting machine
	2,616,325	Nov. 04, 1952	N.D. Abbey	Tube chamfering and cutoff mechanism

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