US PATENT SUBCLASS 423 / 134
.~.~.~ Beryllium

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

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
111  DF  .~ Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) {9}
133  DF  .~.~ Volatizing {2}
134.~.~.~ Beryllium

DEFINITION

Classification: 423/134

(under subclass 133) Processes in which the substance is beryllium.