US PATENT SUBCLASS 70 / 225
.~.~ Wheel

Current as of: June, 1999
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70 /   HD   LOCKS

57  DF  SPECIAL APPLICATION {7}
174  DF  .~ For control and machine elements {8}
225.~.~ Wheel {1}
226  DF  .~.~.~> Rotation blocking {2}

DEFINITION

Classification: 70/225

(under subclass 174) Devices associated with a load supporting or ground traversing wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18, for portable wheel locking devices, usually identified as "chocks", which may hamper the normal free rotative movement or travel of a wheel.