US PATENT SUBCLASS 205 / 685
.~.~ Nitrate containing (e.g., nitric acid, sodium nitrate, etc.)

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}
685.~.~ Nitrate containing (e.g., nitric acid, sodium nitrate, etc.)

DEFINITION

Classification: 205/685

Nitrate containing (e.g., nitric acid, sodium nitrate, etc.):

(under subclass 674) Subject matter in which the electrolyte contains at least one nitrate cation or a compound thereof.