US PATENT SUBCLASS 33 / 372
.~.~.~.~ Elastic bias type clamping

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
365  DF  .~ Level or plumb, terrestrial gravitation responsive {9}
370  DF  .~.~ Work, or workman, attaching means {1}
371  DF  .~.~.~ Requiring no modification of the work {2}
372.~.~.~.~ Elastic bias type clamping

DEFINITION

Classification: 33/372

(under subclass 371) Device wherein the attaching means includes an elastic member exerting a yieldable clamping force upon the workpiece or workman.