US PATENT SUBCLASS 16 / 76
.~.~.~ Coil

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

71  DF  CLOSERS {5}
72  DF  .~ Spring {4}
75  DF  .~.~ Torsional {1}
76.~.~.~ Coil

DEFINITION

Classification: 16/76

(under subclass 75) Devices in which the torsional spring elements are wholly or in part in the form of coils.