US PATENT SUBCLASS 203 / 56
.~.~ One additive an alcohol or ether

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}
51  DF  .~ At least two materials {3}
56.~.~ One additive an alcohol or ether

DEFINITION

Classification: 203/56

(under subclass 51) Processes in which the additional material comprises an alcohol or an ether and at least one other substance.