US PATENT SUBCLASS 33 / 311
.~.~.~ Record movable to marking position

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
304  DF  .~ Borehole direction or inclination {6}
308  DF  .~.~ Pendulum mounted or directed marker {3}
311.~.~.~ Record movable to marking position

DEFINITION

Classification: 33/311

(under subclass 308) Device wherein the record surface is normally spaced from the pendulum marker and wherein means is

provided for imparting movement to the record surface to move the record surface into engagement with the pendulum marker.