US PATENT SUBCLASS 472 / 9
.~.~.~.~ Having altitude control structure

Current as of: June, 1999
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472 /   HD   AMUSEMENT DEVICES

1  DF  ROUNDABOUT {12}
6  DF  .~ Powered toy type {2}
7  DF  .~.~ Having article completely supported by rotating tether, arm, or suspending structure {2}
8  DF  .~.~.~ Article carried propulsion means {2}
9.~.~.~.~ Having altitude control structure

DEFINITION

Classification: 472/9

Having altitude control structure:

(under subclass 8) Subject matter including means for varying the vertical elevation of the object above a ground surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, for altitude control structure for a tethered or suspended article which does not carry its own propulsion means.

SEE OR SEARCH CLASS

446, Amusement Devices: Toys, particularly

31+, for a child restrained, tethered, toy aircraft having a tether manipulated control or mechanism.