US PATENT SUBCLASS 33 / 329
.~.~.~ Gyroscope mounted, lever indicator and skyplate

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
318  DF  .~ Gyroscopically controlled or stabilized {5}
328  DF  .~.~ Attitude indicator (i.e., pitch or bank) {2}
329.~.~.~ Gyroscope mounted, lever indicator and skyplate

DEFINITION

Classification: 33/329

(under subclass 328) Device including an indicator comprising a pivotally mounted rigid arm, and a background member for the indicator, and wherein both said rigid arm indicator and background member are connected to components of the gyroscope.