US PATENT SUBCLASS 83 / 877
.~.~.~ Forming common groove


Current as of: June, 1999
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83 /   HD   CUTTING

861  DF  OTHER THAN COMPLETELY THROUGH WORK THICKNESS OR THROUGH WORK PRESENTED {6}
875  DF  .~ Grooving {1}
876  DF  .~.~ By use of plural independent rotary blades {2}
877.~.~.~ Forming common groove


DEFINITION

Classification: 83/877

Forming common groove:

(under subclass 876) Method or apparatus wherein the first cutting tool serves to form a portion of the groove, the second cutting tool serves to form a portion of the same groove, either simultaneously or sequentially.