US PATENT SUBCLASS 33 / 308
.~.~ Pendulum mounted or directed marker

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.~.~ Pendulum mounted or directed marker {3}
309  DF  .~.~.~> Radiant energy or electrically produced marking
310  DF  .~.~.~> Includes magnetic directional indicator
311  DF  .~.~.~> Record movable to marking position

DEFINITION

Classification: 33/308

(under subclass 304) Device including a pendulum for determining inclination and further including means for marking a surface to give a permanent record of the inclination, and wherein said marking means is carried by or guided by the pendulum.