US PATENT SUBCLASS 137 / 471
.~.~ Pop pressure reactor in inflow to valve

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

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
469  DF  .~ Pop valves {5}
471.~.~ Pop pressure reactor in inflow to valve

DEFINITION

Classification: 137/471

(under subclass 469) Valves in which the reactor is in the inlet to the valve seat.