US PATENT SUBCLASS 261 / 106
.~.~ Liquid downflow

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

75  DF  CONTACT DEVICES {11}
100  DF  .~ Porous sheet {4}
106.~.~ Liquid downflow

DEFINITION

Classification: 261/106

Including auxiliary devices for directing liquids downward to the porous sheet.

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103, and seethe note thereunder.