US PATENT SUBCLASS 205 / 657
.~ Internal battery action

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}
657.~ Internal battery action

DEFINITION

Classification: 205/657

Internal battery action:

(under subclass 640) Process conducted without an external source of electrolytic current; usually the electrolytic current is derived from an internal chemical reaction (e.g., galvanic action, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

706+, for an electrolytic metal cleaning process which employs internal battery action, but does not result in a change of the shape or surface configuration thereof.