US PATENT SUBCLASS 217 / 111
.~.~.~ Frangible diaphragm


Current as of: June, 1999
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217 /   HD   WOODEN RECEPTACLES

72  DF  BARRELS {11}
98  DF  .~ Bungs {5}
110  DF  .~.~ Plugs {1}
111.~.~.~ Frangible diaphragm


DEFINITION

Classification: 217/111

(under subclass 110) Plugs having a portion to be broken out for venting the barrel, inserting a spigot, etc.