US PATENT SUBCLASS 30 / 443
.~ Including punch

Current as of: June, 1999
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30 /   HD   CUTLERY

400  DF  CAN OPENER {15}
443.~ Including punch {6}
444  DF  .~.~> With prime mover to drive cutter relative to can
445  DF  .~.~> Peripheral punch
446  DF  .~.~> Plural-spaced cutting edges {1}
448  DF  .~.~> With can support
449  DF  .~.~> Traversing punch
450  DF  .~.~> And fulcrum

DEFINITION

Classification: 30/443

(under subclass 400) Device wherein the cutting element includes at least one sharp cutting edge and is adapted to pierce through the wall of the container in a single stroke.

SEE OR SEARCH THIS CLASS, SUBCLASS:

411, and see the notes thereunder for a punch-type can opener combined with means to close a punched opening.

414, for plural independent can openers wherein one is of the punch type.