US PATENT SUBCLASS 269 / 316
.~ Vertically compressible abutment

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

315  DF  WORK-STOP ABUTMENT {5}
316.~ Vertically compressible abutment

DEFINITION

Classification: 269/316

(under subclass 315) Device wherein the top of the abutment is resiliently urged upwardly away from the bottom of the abutment and may be moved toward the bottom upon the application of a force directed against the top.