US PATENT SUBCLASS 134 / 40
.~ Oils, grease, tar, or wax removal, by dissolving

Current as of: June, 1999
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134 /   HD   CLEANING AND LIQUID CONTACT WITH SOLIDS

*  DD  PROCESSES {23}
40.~ Oils, grease, tar, or wax removal, by dissolving

DEFINITION

Classification: 134/40

(under the class definition) Processes in which oils, waxes, tars, or greases are removed from the work by solvent, action.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, and 31, for solvent removal of such materials which operate by solvent vapor condensation on the work.

39, for carbon removal, carbon deposits frequently having oils or greases admixed therewith.