US PATENT SUBCLASS 30 / 421
.~.~.~ Including prime mover

Current as of: June, 1999
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30 /   HD   CUTLERY

400  DF  CAN OPENER {15}
416  DF  .~ With driven roller to continuously engage bead and relatively rotate can and opener {5}
420  DF  .~.~ Roller drive means causes initial piercing {2}
421.~.~.~ Including prime mover

DEFINITION

Classification: 30/421

(under subclass 420) Device which includes means to rotate the wheel-like member comprising a motor or other power source, as distinguished from a hand operated mechanism.