US PATENT SUBCLASS 205 / 681
.~.~ Chromium containing

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}
681.~.~ Chromium containing

DEFINITION

Classification: 205/681

Chromium containing:

(under subclass 674) Subject matter in which the electrolyte contains chromium (Cr).

SEE OR SEARCH THIS CLASS, SUBCLASS:

679, for an electrolyte in which less than 50 percent by weight is water and more than 20 percent by weight is composed of one or more of chromium or its compounds.