US PATENT SUBCLASS 202 / 162
.~.~.~.~ Vapor-element by-pass

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
152  DF  .~.~ Separatory {3}
158  DF  .~.~.~ Column {4}
162.~.~.~.~ Vapor-element by-pass

DEFINITION

Classification: 202/162

The vapors may be passed around the dephlegmator, the column, or a like element of the vapor system.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

63,.