US PATENT SUBCLASS 55 / 490.1
.~ With heating or cooling means


Current as of: June, 1999
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55 /   HD   GAS SEPARATION

490  DF  WITH MEANS SECURING OR RETAINING SEPARATING MEDIA {7}
490.1.~ With heating or cooling means {1}
490.2  DF  .~.~> Two confined fluids in indirect contact


DEFINITION

Classification: 55/490.1

With heating or cooling means:

(under subclass 490) Apparatus having means for raising or lowering the temperature of a gaseous fluid mixture or separated constituent.