US PATENT SUBCLASS 340 / 815.81
.~ Grouped drop annunciators


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

815.4  DF  VISUAL INDICATION {18}
815.81.~ Grouped drop annunciators {1}
815.82  DF  .~.~> Support


DEFINITION

Classification: 340/815.81

Grouped drop annunciators:

(under subclass 815.4) Subject matter having a multi unit indicator comprising a device operable to move a plurality of visually perceptible members (i.e., targets) individually or simultaneously from a nonsignalling position to a signalling position.