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All Patents in class 60/390
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
2,404,127	Jul. 16, 1946	H. Ernst	Sensitive Control Mechanism	naval guns
2,500,797	Mar. 14, 1950	E.P. Bullard	Positioning Apparatus
4,706,456	Nov. 17, 1987	L.W. Durham, B.S. Backe	Method and Apparatus for Controlling Hydraulic Systems	machine tool controls

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