US PATENT SUBCLASS 33 / 349
.~ With preselected direction indicator

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
349.~ With preselected direction indicator

DEFINITION

Classification: 33/349

(under subclass 300) Device having means, in addition to the force responsive direction indicator, which is selectively positioned to indicate the desired orientation of some structure with respect to the indicated direction of the force.