US PATENT SUBCLASS 40 / 463
.~ With electric circuit control

Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

446  DF  CHANGING EXHIBITOR {25}
463.~ With electric circuit control {5}
464  DF  .~.~> Mechanical switch
465  DF  .~.~> Photoelectric and capacity switching
466  DF  .~.~> Electromotor operated {1}
468  DF  .~.~> Magnetoclutch let off
469  DF  .~.~> Magnetoclutch take-up

DEFINITION

Classification: 40/463

With electric circuit control:

(under subclass 446) Exhibitor wherein particular emphasis is placed on the electrical circuitry which causes the change in exhibits.

SEE OR SEARCH CLASS

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems, appropriate subclasses for selective electrically controlled visual display systems.