US PATENT SUBCLASS 205 / 678
.~.~.~.~ With sulfuric acid


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

640  DF  ELECTROLYTIC EROSION OF A WORKPIECE FOR SHAPE OR SURFACE CHANGE (E.G., ETCHING, POLISHING, ETC.) (PROCESS AND ELECTROLYTE COMPOSITION) {19}
674  DF  .~ Electrolyte composition or defined electrolyte {6}
675  DF  .~.~ Less than 50 weight percent water {3}
676  DF  .~.~.~ More than 20 weight percent organic material {2}
678.~.~.~.~ With sulfuric acid


DEFINITION

Classification: 205/678

With sulfuric acid:

(under subclass 676) Subject matter in which the electrolyte also contains sulfuric acid.