US PATENT SUBCLASS 340 / 815.41
.~ False signal prevention (anti-sunlight)

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

815.4  DF  VISUAL INDICATION {18}
815.41.~ False signal prevention (anti-sunlight)

DEFINITION

Classification: 340/815.41

False signal prevention (anti-sunlight):

(under subclass 815.4) Subject matter having means for preventing an improper indication.