US PATENT SUBCLASS 30 / 173
.~ Plural cooperating blades

Current as of: June, 1999
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30 /   HD   CUTLERY

165  DF  CUTTING TOOLS {19}
173.~ Plural cooperating blades {6}
174  DF  .~.~> Corer type
175  DF  .~.~> Nippers {8}
194  DF  .~.~> Shears {12}
263  DF  .~.~> Rotary blade {2}
266  DF  .~.~> Joints and blade-tension means {3}
271  DF  .~.~> Stops and bumpers

DEFINITION

Classification: 30/173

Cutting tools in which two or more blades cooperate to perform the cutting operation; at least one of the blades must be movable relative to the other.

(1) Note. Does not include plural blade knives even though all such blades operate simultaneously, for which see this class, subclasses 299+, and the notes thereto.

SEE OR SEARCH CLASS

433, Dentistry,

1, for veterinary crown slitters; and subclasses 144+ for other crown slitters.