Home| FAQ	Search:Advanced|Person|Company| Type|Class	Login

Quick search:	Patent number:	Patent Date:

All Patents in class 137/201
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,167,433	Jul. 25, 1939	G.B. Duffield	Air Vent Valve
	2,284,137	May 26, 1942	L.W. Eggleston	Air Vent Valve

Toggle print mode
Hide pictures

Copyright © 2002-2025 - DATAMP