US PATENT SUBCLASS 40 / 457
.~.~ Exhibitor controlled by sound circuit

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

446  DF  CHANGING EXHIBITOR {25}
455  DF  .~ With sound {2}
457.~.~ Exhibitor controlled by sound circuit

DEFINITION

Classification: 40/457

Exhibitor controlled by sound circuit:

(under subclass 455) Device in which the sounding means associated with the changing exhibitor is operated through an electric circuit and the exhibitor is actuated or controlled by said sound circuit.