US PATENT SUBCLASS 261 / 126
.~.~ Upflowing gases

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

75  DF  CONTACT DEVICES {11}
119.1  DF  .~ Liquid tank {5}
126.~.~ Upflowing gases

DEFINITION

Classification: 261/126

The gases adapted to flow in and out in an upward direction.