US PATENT SUBCLASS 301 / 6.91
.~.~ Having vibration damper or heat insulator

Current as of: June, 1999
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301 /   HD   LAND VEHICLES: WHEELS AND AXLES

5.1  DF  WHEEL {21}
6.1  DF  .~ With drive or brake attachment {8}
6.91.~.~ Having vibration damper or heat insulator

DEFINITION

Classification: 301/6.91

Having vibration damper or heat insulator:

(under subclass 6.1) Wheel including (1) provision to eliminate regular, repetitive oscillations or (2) provision to prevent the transfer of heat.