US PATENT SUBCLASS 203 / 61
.~.~ Acid

Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

50  DF  ADDING MATERIAL TO DISTILLAND EXCEPT WATER OR STEAM PER SE {2}
57  DF  .~ Organic compound {8}
61.~.~ Acid

DEFINITION

Classification: 203/61

(under subclass 57) Processes in which the organic compound is an acid.

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15, for the scope of the term "and".