US PATENT SUBCLASS 267 / 84
.~.~.~ Metal layer is compressible coil spring

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

80  DF  SPRING PANEL {9}
81  DF  .~ Composite springs of diverse material, e.g., metal and non-metal {2}
83  DF  .~.~ Superposed layers; metal and non-metal {1}
84.~.~.~ Metal layer is compressible coil spring

DEFINITION

Classification: 267/84

(under subclass 83) Device wherein the metal layer comprises spiral springs which receive the load axially of the spiral.

SEE OR SEARCH THIS CLASS, SUBCLASS:

91+, for spring panels comprising compressible coil springs.