US PATENT SUBCLASS 131 / 196
.~.~.~ Spaced inner bowl

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}
194  DF  .~.~ Heat exchanging and/or insulating {2}
196.~.~.~ Spaced inner bowl {1}
197  DF  .~.~.~.~> Plural reversely extending passages

DEFINITION

Classification: 131/196

(under subclass 194) Smoking devices in which a tobacco charge containing bowl is mounted in spaced relation within an outer bowl.

(1) Note. Compare with subclass 220 of this class.