US PATENT SUBCLASS 131 / 228
.~.~.~ With sleeve or cap

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}
227  DF  .~.~ Stems, bits or tips {2}
228.~.~.~ With sleeve or cap

DEFINITION

Classification: 131/228

(under subclass 227) Smoking devices having a sleeve or cap for the bit or tip.