US PATENT SUBCLASS 16 / 305
.~.~.~ Plural coils

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

221  DF  HINGE {32}
277  DF  .~ Resiliently biased hinge {10}
304  DF  .~.~ Coil {3}
305.~.~.~ Plural coils

DEFINITION

Classification: 16/305

Plural coils:

(under subclass 304) Hinge including two distinct helices or flat spirals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282+, for a double-acting spring hinge employing two spaced hinge axes with a coil spring associated with each axis.