US PATENT SUBCLASS 40 / 406
DISPLAY DEVICE WITH GAS OR LIQUID MOVEMENT

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

406DISPLAY DEVICE WITH GAS OR LIQUID MOVEMENT {1}
407  DF  .~> With dispersion of fluid medium {1}

DEFINITION

Classification: 40/406

DISPLAY DEVICE WITH GAS OR LIQUID MOVEMENT:

(under the class definition) Device for attracting attention of the observer and generally used in advertising in which the exhibitor is provided with means for moving a gas or liquid so that it is sensed by the observer.