US PATENT SUBCLASS 305 / 46
.~ With resiliently biased ground engaging portion
Current as of:
June, 1999
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305 /
HD
WHEEL SUBSTITUTES FOR LAND VEHICLES
185
DF
TRACKS OR TREADS
{14}
46
.~ With resiliently biased ground engaging portion
DEFINITION
Classification: 305/46
(under subclass 185) Apparatus in which the track treads are provided with a spring or rubber biased ground engaging portion.
