US PATENT SUBCLASS 152 / 511
.~.~.~ Inner tube

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
510  DF  .~.~ Tire characterized by its air impervious liner or inner tube {1}
511.~.~.~ Inner tube {1}
512  DF  .~.~.~.~> With reinforcement element

DEFINITION

Classification: 152/511

Inner tube:

(under subclass 510) Subject matter wherein a flexible closed annular element is carried within the chamber of the tire filled with fluid under pressure that is greater than atmospheric pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

450,