US PATENT SUBCLASS 55 / 490.1
.~ With heating or cooling means
Current as of:
June, 1999
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55 /
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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.