US PATENT SUBCLASS 269 / 280
.~.~.~.~ By substitution

Current as of: June, 1999
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269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
257  DF  .~ Jaw features {3}
271  DF  .~.~ Attachment(s) and/or insert(s) {6}
279  DF  .~.~.~ Selective {1}
280.~.~.~.~ By substitution {4}
281  DF  .~.~.~.~.~> With yieldable type fastener means
282  DF  .~.~.~.~.~> With threaded type fastener means
283  DF  .~.~.~.~.~> With socket type fastener means
284  DF  .~.~.~.~.~> With detent type fastener means

DEFINITION

Classification: 269/280

(under subclass 279) Device including means for interchange of work-contacting portions by removal and replacement of the attachment and/or insert bearing said portion.