US PATENT SUBCLASS 152 / 229
.~.~.~.~ Calks

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
208  DF  .~ Anti-skid devices {8}
225 R  DF  .~.~ Plate or bar type {2}
226  DF  .~.~.~ With traction lugs {2}
229.~.~.~.~ Calks {1}
230  DF  .~.~.~.~.~> Integral

DEFINITION

Classification: 152/229

The traction lugs on the plate or bar type anti-skid devices are symmetrical and taper toward a point, substantially.

(1) Note. For horseshoe calks, see Class 168, Farriery, appropriate subclasses.

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