US PATENT SUBCLASS 33 / 344
.~ With damper or governor for sensor

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
344.~ With damper or governor for sensor {2}
345  DF  .~.~> Magnetic
346  DF  .~.~> Fluid

DEFINITION

Classification: 33/344

(under subclass 300) Device having means whose function is to dampen, or otherwise control the rate of motion of, the direction sensing and/or indicating portion thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

355+, for a magnetic compass having means to latch the magnetic needle in a fixed position.

368, for a level or plumb having means to latch the direction indicator in a fixed position.