US PATENT SUBCLASS 152 / 340.1
.~.~.~.~ Mutually free walls

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}
331.1  DF  .~.~ Multiple chamber {3}
339.1  DF  .~.~.~ Annular chambers {2}
340.1.~.~.~.~ Mutually free walls {1}
341.1  DF  .~.~.~.~.~> With simultaneous inflating means

DEFINITION

Classification: 152/340.1

Mutually free walls:

(under subclass 339.1) Subject matter wherein the walls of the annular multiple chambers are not united to each other.