US PATENT SUBCLASS 305 / 171
.~.~.~.~ Including core bar reinforcement

Current as of: June, 1999
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305 /   HD   WHEEL SUBSTITUTES FOR LAND VEHICLES

157  DF  ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD {5}
165  DF  .~ Track formed of endless flexible belt {6}
167  DF  .~.~ With metallic embedded reinforcement {4}
170  DF  .~.~.~ Reinforcement is endless {2}
171.~.~.~.~ Including core bar reinforcement {2}
172  DF  .~.~.~.~.~> With overlapping core bar sections
173  DF  .~.~.~.~.~> Including sprocket wheel or roller guide lug or projection {1}

DEFINITION

Classification: 305/171

Including core bar reinforcement:

(under subclass 170) Apparatus wherein a plurality of spaced rigid members of uniform cross section are embedded extending transversely of the endless band.