All Patents in class 137/385


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All Patents in class 137/385
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,104,022	Jul. 21, 1914	M. Tuttle	Combined Wrench and Lock For Shut-Off Cocks
1,621,738	Mar. 22, 1927	H.S. Baker, J.W. Motherwell	Retard device	valves