All Patents in class 251/47


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All Patents in class 251/47
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	192,273	Jun. 19, 1877	N.E. Nash	Steam-Engine Governor
	2,620,823	Dec. 09, 1952	R.D. Wortendyke, R.R. Adams	Tracer Valve Mechanism with Dashpot
	2,635,847	Apr. 21, 1953	F.H. Rued	Turbine Jet Controller