US PATENT SUBCLASS 423 / 298
.~ Elemental boron

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

276  DF  BORON OR COMPOUND THEREOF {5}
298.~ Elemental boron

DEFINITION

Classification: 423/298

(under subclass 276) Products or processes wherein the product is elemental boron.