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All Patents in class 137/624.13
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	604,241	May 17, 1898	D.M. Tuttle	Gas Engine
	873,822	Dec. 17, 1907	F.L. Wolfe	Whistle Valve
	1,792,222	Feb. 10, 1931	H.H. Hardinge	Oil burner
	2,671,292	Mar. 09, 1954	E.Y. Seborg, H.J. Caldwell	Control Mechanism for Honing Machines
	4,789,001	Dec. 06, 1988	L.W. Durham, B.S. Backe	Operating System for a Valve

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