US PATENT SUBCLASS 423 / 133
.~.~ Volatizing

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.~.~ Volatizing {2}
134  DF  .~.~.~> Beryllium
135  DF  .~.~.~> Group IIIA metal {1}

DEFINITION

Classification: 423/133

(under subclass 111) Processes including the step of causing a normally solid or liquid substance in either element or compound form to be changed into a gas or a vapor; see Glossary.