US PATENT SUBCLASS 261 / 52
.~.~.~.~ Gas inlet and outlet

Current as of: June, 1999
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261 /   HD   GAS AND LIQUID CONTACT APPARATUS

19  DF  FLUID DISTRIBUTION {5}
38  DF  .~ Valved {8}
42  DF  .~.~ Multiple valves {5}
43  DF  .~.~.~ Connected {4}
52.~.~.~.~ Gas inlet and outlet

DEFINITION

Classification: 261/52

Including gas inlet and outlet valves.