US PATENT SUBCLASS 205 / 777
.~.~ Of ferrous metal

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

775  DF  ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) {19}
775.5  DF  .~ For corrosion {3}
777.~.~ Of ferrous metal

DEFINITION

Classification: 205/777

Of ferrous metal:

(under subclass 775.5) Subject matter in which the material is iron (Fe) or contains at least 50 percent iron.

SEE OR SEARCH THIS CLASS, SUBCLASS:

735+, for electrolytic protection of ferrous metal objects.