US PATENT SUBCLASS 205 / 693
.~.~.~ Cleaning or refining

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

687  DF  ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8}
688  DF  .~ Organic {9}
689  DF  .~.~ Fibrous {5}
693.~.~.~ Cleaning or refining

DEFINITION

Classification: 205/693

Cleaning or refining:

(under subclass 689) Subject matter in which the fibrous material is purified by removing foreign material therefrom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

690, for electrolytic bleaching of fibrous organic material.

702, for electrolytic removal of a metal or metal compound from nonfibrous organic material.

705, for electrolytic removal of foreign material from a metal or metal alloy.

771+, for electrolytic removal of a metal or metal compound from inorganic material.