US PATENT SUBCLASS 252 / 79.3
.~.~ Fluorine compound containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

79.1  DF  ETCHING OR BRIGHTENING COMPOSITIONS {2}
79.2  DF  .~ Inorganic acid containing {2}
79.3.~.~ Fluorine compound containing

DEFINITION

Classification: 252/79.3

(under subclass 79.2) Compositions which contain a fluorine compound.

(1) Note. The fluorine compound may be the acid or a different compound in addition to the acid.