US PATENT SUBCLASS 267 / 178
.~.~ Support type

Current as of: June, 1999
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267 /   HD   SPRING DEVICES

166  DF  COIL {6}
170  DF  .~ Including end thrust member {7}
178.~.~ Support type

DEFINITION

Classification: 267/178

(under subclass 170) Spring device either (a) for retaining an object against the forces of gravity, or (b) for supplementing the retention against gravity of a cantilever-supported object.