US PATENT SUBCLASS 291 / 2
WHEEL-SLIP CONTROL

Current as of: June, 1999
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291 /   HD   TRACK SANDERS

2WHEEL-SLIP CONTROL

DEFINITION

Classification: 291/2

The sand-dispensing device is automatically operated by the slipping or skidding of a traction-wheel or the relative slipping of two or more traction-wheels.