US PATENT SUBCLASS 205 / 736
.~.~.~.~ Stainless steel

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}
704  DF  .~ Metal or metal alloy {3}
724  DF  .~.~ Object protection {8}
735  DF  .~.~.~ Ferrous metal {2}
736.~.~.~.~ Stainless steel

DEFINITION

Classification: 205/736

Stainless steel:

(under subclass 735) Subject matter in which the ferrous metal is steel containing at least 9 weight percent chromium (Cr).