All Patents in class 251/65


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All Patents in class 251/65
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	319,260	Jun. 02, 1885	A.L. Ide	Governor for Steam and Fluid Engines
	2,387,858	Oct. 30, 1945	P.S. Russel	Liquid Level Controlling Means
	2,493,297	Jan. 03, 1950	W.S. Landon	Orifice Cleaning Means
	2,494,395	Jan. 10, 1950	W.S. Landon	Magnetically Operated Safety Valve Closing Device