US PATENT SUBCLASS 305 / 166
.~.~ Including plural layers of different materials

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}
166.~.~ Including plural layers of different materials

DEFINITION

Classification: 305/166

Including plural layers of different materials:

(under subclass 165) Apparatus wherein the belt includes at least two strata of distinct constituent, the constituent in one of the stratums being of distinct chemical or mechanical

composition than the constituent in the other of the strata.

SEE OR SEARCH CLASS

474, Endless Belt Power Transmission Systems or Components,

264, for a friction drive belt wherein the belt includes at least two distinct layers of different or similar composition.