US PATENT SUBCLASS 202 / 152
.~.~ Separatory

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

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
152.~.~ Separatory {3}
153  DF  .~.~.~> Still and column {2}
158  DF  .~.~.~> Column {4}
163  DF  .~.~.~> Still {13}

DEFINITION

Classification: 202/152

Systems and parts of apparatus directed to separation of substances preexisting in the distilland where not provided for in subclasses below.

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus,

98+, for apparatus for treating mineral oils including vaporizing and condensing means and subclasses 104+, for apparatus including vaporizing means.

203, Distillation: Processes, Separatory, appropriate subclass, for a separatory distillation process.