US PATENT SUBCLASS 137 / 637
.~ Valves with separate, correlated, actuators

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
637.~ Valves with separate, correlated, actuators {3}
637.05  DF  .~.~> Correlated across separable flow path joint
637.1  DF  .~.~> Interlocked
637.2  DF  .~.~> Coaxial stems {1}

DEFINITION

Classification: 137/637

(under subclass 561) Subject matter in which a plurality of valves or valve groups each are provided with individual, but particularly related actuator mechanisms.