US PATENT SUBCLASS 30 / 440
.~.~.~.~.~ Cutter comprising rotatable disc

Current as of: June, 1999
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30 /   HD   CUTLERY

400  DF  CAN OPENER {15}
435  DF  .~ Including sweep cutter {3}
437  DF  .~.~ With can penetrating pivot {1}
438  DF  .~.~.~ Variable cutter radius {2}
439  DF  .~.~.~.~ Freely slidable cutter {1}
440.~.~.~.~.~ Cutter comprising rotatable disc

DEFINITION

Classification: 30/440

(under subclass 439) Device in which the cutting element is circular about a central axis, includes a cutting edge extending peripherally about the cutting element, and is supported to turn freely about the axis as the cutting edge pierces and traverses the container.