US PATENT SUBCLASS 340 / 484
.~.~.~ Sliding sign or shutter

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

425.5  DF  LAND VEHICLE ALARMS OR INDICATORS {11}
480  DF  .~ Electromagnetically actuated mechanical signal {3}
482  DF  .~.~ Normally encased {3}
484.~.~.~ Sliding sign or shutter

DEFINITION

Classification: 340/484

Sliding sign or shutter:

(under subclass 482) Subject matter wherein the device is a plane sheet which is brought into display position by a

rectilinear motion.