US PATENT SUBCLASS 215 / 51
.~.~.~ Multiple stoppers

Current as of: June, 1999
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215 /   HD   BOTTLES AND JARS

40  DF  NECK {5}
47  DF  .~ Frangible neck {3}
50  DF  .~.~ Stopper {2}
51.~.~.~ Multiple stoppers {2}
52  DF  .~.~.~.~> Spring retainer
53  DF  .~.~.~.~> Seal

DEFINITION

Classification: 215/51

Multiple stoppers:

(under subclass 50) Subject matter having a plurality of plugs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

251+, for a closure structure wherein the outer closure breaks or tears away to expose a second closure.