US PATENT SUBCLASS 409 / 305
.~.~ Arcuate groove


Current as of: June, 1999
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409 /   HD   GEAR CUTTING, MILLING, OR PLANING

288  DF  PLANING {14}
304  DF  .~ Means for cutting groove {2}
305.~.~ Arcuate groove {1}
306  DF  .~.~.~> For rifling


DEFINITION

Classification: 409/305

Arcuate groove:

(under subclass 304) Apparatus particularly adapted to form an elongated recess in a curved surface of a workpiece.

(1) Note. Included herein is means for scoring the surface of a grinding or crushing roll, etc., with longitudinal, helical, sinuous, or other grooves.