US PATENT SUBCLASS 423 / 273
.~.~ Additive contains metal, boron, or silicon

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

265  DF  WITH ADDITIVE {7}
272  DF  .~ For hydrogen peroxide {1}
273.~.~ Additive contains metal, boron, or silicon

DEFINITION

Classification: 423/273

(under subclass 272) Products or processes in which the substance is a metal, boron or silicon, or a compound thereof.