US PATENT SUBCLASS 280 / 683
.~.~.~.~ With fluid-type suspension

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
80.1  DF  .~ Running gear {20}
104  DF  .~.~ Equalized frame {1}
676  DF  .~.~.~ Tandem axles {7}
683.~.~.~.~ With fluid-type suspension

DEFINITION

Classification: 280/683

(under subclass 676) Tandem axles provided with a fluid (liquid or gas) spring or spring suspension system between the axles and vehicle frame.