US PATENT SUBCLASS 261 / 146
.~ Plural distinct contact zones

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}
146.~ Plural distinct contact zones {1}
147  DF  .~.~> Serially arranged in flow path {2}

DEFINITION

Classification: 261/146

(under subclass 127) Apparatus including two or more spaced interconnected zones where gas and liquid are brought into contact.