US PATENT SUBCLASS 131 / 176
.~.~.~ Pipe covers

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}
174  DF  .~.~ Wind or ash guarding or ash receiving {2}
176.~.~.~ Pipe covers {1}
177  DF  .~.~.~.~> With tamper or tamper type

DEFINITION

Classification: 131/176

(under subclass 174) Smoking devices, commonly known as pipes, provided with covers or screens to preclude escape of ash from the bowl portion.