US PATENT SUBCLASS 33 / 398
.~.~.~ Weight, variable quantity or center of gravity

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}
391  DF  .~.~ Pendulum {8}
398.~.~.~ Weight, variable quantity or center of gravity

DEFINITION

Classification: 33/398

(under subclass 391) Device wherein the body includes means for adjusting it quantitatively or for adjusting its center of gravity.