US PATENT SUBCLASS 305 / 50
.~ Track treads interconnected without separate fastening means

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

185  DF  TRACKS OR TREADS {14}
50.~ Track treads interconnected without separate fastening means

DEFINITION

Classification: 305/50

(under subclass 185) Apparatus wherein the treads are provided with interengaging fastening portions formed either integrally therewith of preassembled thereto so that adjacent

treads may be secured together without the addition of a separate connecting or fastening member.

SEE OR SEARCH CLASS

160, Flexible or Portable Closure, Partition, or Panel,

235, for adjacent panels secured together by means of interengaging curled or bent side edges on the panels.