US PATENT SUBCLASS 261 / 97
.~.~ Liquid-flow control

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

75  DF  CONTACT DEVICES {11}
94  DF  .~ Porous mass {3}
97.~.~ Liquid-flow control {2}
98  DF  .~.~.~> Spray
99  DF  .~.~.~> Capillary feed

DEFINITION

Classification: 261/97

Including auxiliary devices for directing the flow of liquids.