US PATENT SUBCLASS 409 / 260
.~.~ Arcuate groove in cylindrical surface

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

243  DF  BROACHING {20}
259  DF  .~ Means for cutting groove {1}
260.~.~ Arcuate groove in cylindrical surface {1}
261  DF  .~.~.~> Rifling

DEFINITION

Classification: 409/260

Arcuate groove in cylindrical surface:

(under subclass 259) Apparatus for forming an elongated recess that is curved into a surface that is generally circular and extends uniformly along the circular axis.