US PATENT SUBCLASS 208 / 363
.~.~.~ Steam

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

308  DF  FRACTIONATION {5}
347  DF  .~ Distillation {12}
362  DF  .~.~ With added gas or vapor {1}
363.~.~.~ Steam

DEFINITION

Classification: 208/363

(under subclass 362) Processes wherein the added vapor is steam.

SEE OR SEARCH THIS CLASS, SUBCLASS:

348, for mineral oil distillation processes wherein water has been added and which may be vaporized during distillation.