US PATENT SUBCLASS 40 / 422
.~ Fluid operated

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

421  DF  TWO-DIMENSIONAL MOVABLE FIGURE DISPLAY DEVICE {3}
422.~ Fluid operated

DEFINITION

Classification: 40/422

Fluid operated:

(under subclass 421) Device operated by pressure of a fluid such as air, gas, steam, or water.

SEE OR SEARCH THIS CLASS, SUBCLASS:

477+, for changing exhibitors operated in a similar manner.

SEE OR SEARCH CLASS

446, Amusement Devices: Toys, appropriate

166+, and 176+ for fluid-operated toys.