US PATENT SUBCLASS 293 / 137
.~.~.~ Coil spring

Current as of: June, 1999
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293 /   HD   VEHICLE FENDERS

102  DF  BUFFER OR BUMPER TYPE {30}
132  DF  .~ Bumper having impact force absorbing means directly interposed between bumper and vehicle structure {3}
135  DF  .~.~ Spring type {2}
137.~.~.~ Coil spring

DEFINITION

Classification: 293/137

Coil spring:

(under subclass 135) Device in which the shock-dampening material is in the form of a spiral.