US PATENT SUBCLASS 280 / 148
.~.~.~ Supplemental bolsters

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

29  DF  WHEELED {21}
80.1  DF  .~ Running gear {20}
143  DF  .~.~ Bolsters and standards {5}
148.~.~.~ Supplemental bolsters

DEFINITION

Classification: 280/148

(under subclass 143) Devices having bolsters supplemental to the regular bolsters and either superposed thereon or in an intermediate position for supporting the load or load-carrier.