US PATENT SUBCLASS 340 / 815.92
.~.~.~ Gravity operated drop annunciator

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

815.4  DF  VISUAL INDICATION {18}
815.83  DF  .~ Movable {5}
815.9  DF  .~.~ By electromagnetically releasable latch {2}
815.92.~.~.~ Gravity operated drop annunciator

DEFINITION

Classification: 340/815.92

Gravity operated drop annunciator:

(under subclass 815.9) Subject matter in which the target is moved into an annunciation or a set position by gravitational force.