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All Patents in class 251/291
Patents 1 - 4 of 4
Number	Date	Patentee	Title	Type
33,095	Aug. 20, 1861	B.B. Moore	Hydrant
1,629,449	May 17, 1927	G.B. Duffield	Valve Operating Device	valves
1,807,625	Jun. 02, 1931	H.J. Hjorth	Valve Wrench	wrenches
2,879,026	Mar. 24, 1959	R.C. Geiger, D.A. Meeker	Detachable actuator

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