All Patents in class 277/387


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All Patents in class 277/387
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	2,370,964	Mar. 06, 1945	J.T. Janette	Shaft seal
	3,081,821	Mar. 19, 1963	A.R. Hamilton	Cylinder mold
	4,299,398	Nov. 10, 1981	E.C. Wahl	Pressure Compensating Shaft Seal