US PATENT SUBCLASS 131 / 230
.~.~ Materials and compositions

Current as of: June, 1999
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131 /   HD   TOBACCO

329  DF  TOBACCO USERS' APPLIANCE {8}
330  DF  .~ Device used for smoking {21}
230.~.~ Materials and compositions

DEFINITION

Classification: 131/230

(under subclass 330) Smoking devices in which no significant structure of the smoking device is claimed but only the materials or compositions used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

352, for tobacco compositions.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic, and the notes to the class definition thereof, for other coating or plastic compositions.