US PATENT SUBCLASS 83 / 622
.~.~.~.~ Successively acting

Current as of: June, 1999
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83 /   HD   CUTTING

523  DF  MEANS TO DRIVE OR TO GUIDE TOOL {35}
613  DF  .~ With simple rectilinear reciprocating motion only {13}
618  DF  .~.~ Plural tools with same drive means {2}
620  DF  .~.~.~ Plural distinct cutting edges on same support {2}
622.~.~.~.~ Successively acting

DEFINITION

Classification: 83/622

(under subclass 620) Apparatus wherein the plurality of tools are so arranged on the tool support that in the cutting stroke one of the tools comes into cutting engagement with the work ahead of another.