US PATENT SUBCLASS 220 / 713
.~.~.~ Having aperture

Current as of: June, 1999
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220 /   HD   RECEPTACLES

694  DF  CONTAINER ATTACHMENT OR ADJUNCT {21}
703  DF  .~ Drinking device {6}
711  DF  .~.~ Removable closure having specific drinking means {3}
713.~.~.~ Having aperture

DEFINITION

Classification: 220/713

Having aperture:

(under subclass 711) Subject matter wherein the means for the passage of the liquid comprises an opening in the removable closure.