US PATENT SUBCLASS 446 / 446
.~.~ By guide surface below running surface

Current as of: June, 1999
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446 /   HD   AMUSEMENT DEVICES: TOYS

431  DF  ROLLING OR TUMBLING (E.G., WHEELED) {16}
444  DF  .~ Including extrinsic guide or means cooperable with extrinsic guide {2}
446.~.~ By guide surface below running surface {1}
447  DF  .~.~.~> Vehicle having flanged wheel

DEFINITION

Classification: 446/446

By guide surface below running surface:

(under subclass 444) Device having means on the rollable or wheeled means adapted to engage path-defining structure external to and not forming a part of the rollable or wheeled means, wherein the path-defining structure comprises a surface adapted to support thereover the weight of the rollable or wheeled means, and a lower generally vertical surface adapted to constrain the movement of the rollable or wheeled means to the particular path.