US PATENT SUBCLASS 152 / 519
.~.~.~.~ Inflated or expanded in emergency only

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}
516  DF  .~.~ With means enabling restricted operation in damaged or deflated condition {5}
518  DF  .~.~.~ Utilizing additional inflatable supports which become load bearing in emergency {1}
519.~.~.~.~ Inflated or expanded in emergency only

DEFINITION

Classification: 152/519

Inflated or expanded in emergency only:

(under subclass 518) Subject matter wherein an inflatable member carried in the tire chamber is inflated to support the tire in response to damage resulting in the loss of air pressure.