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Class Information
Number: 137/614.15
Name: Fluid handling > Systems > Flow path with serial valves and/or closures > Common actuator > Opposed screw
Description: Systems in which the valve heads are simultaneously moved toward or away from oppositely directed seats by a common actuator through a right and left hand screw relationship.

Patents under this class:

Patent Number Title Of Patent Date Issued
5370359 Manual seal coupler Dec. 6, 1994

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