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All Patents in class 72/51
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	924,828	Jun. 15, 1909	S.A. James, J.A. Pittman	Pipe Joining Machine
	1,064,956	Jun. 17, 1913	W.A. Bernard	Process For Forming Sheet Metal Handles
	1,388,903	Aug. 30, 1921	F.H. Stolp	Tube Making Machine
	1,408,232	Feb. 28, 1922	F.H. Stolp	Method of Forming Sheet Metal

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