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All Patents in class 251/228
Patents 1 - 5 of 5
Number	Date	Patentee	Title	Type
312,906	Feb. 24, 1885	E. Schrabetz	Gas Governor for Gas Engines	gas and gasoline engines
2,414,751	Jan. 21, 1947	O.H. Ludeman	Valve	steam engine valves
2,481,183	Sep. 06, 1949	H.R. Welby	Pump Priming Means	reciprocating pumps
2,827,259	Mar. 18, 1958	E.T. Kindt	Automatic gate for dust collection system	waste collection mechanisms
6,027,099	Feb. 22, 2000	D.S. Pusateri	Tip Valve for Pneumatic Tool

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