US PATENT SUBCLASS 261 / 157
.~.~ With heat exchange means for feed fluid

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

127  DF  WITH EXTERNAL SUPPLY OR REMOVAL OF HEAT {14}
152  DF  .~ Heat exchange means at or downstream of contact zone {5}
157.~.~ With heat exchange means for feed fluid

DEFINITION

Classification: 261/157

(under subclass 152) Apparatus combined with a heat exchanger upstream of the contactor.