US PATENT SUBCLASS 493 / 63
.~.~.~ Perforating


Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

51  DF  CONTAINER MAKING {2}
52  DF  .~ Rigid container (e.g., box, carton, cap, cup, etc.) {10}
56  DF  .~.~ With cutting, breaking, tearing, or abrading {7}
63.~.~.~ Perforating


DEFINITION

Classification: 493/63

Perforating:

(under subclass 56) Method or apparatus including piercing a single work surface; thus forming a crater in the work or forming cleft through to the opposite work surface.

SEE OR SEARCH CLASS

83, Cutting,

866+, for use of a tool to pierce a single work surface and form a crater, without paper working.