US PATENT SUBCLASS 16 / 75
.~.~ Torsional

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

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

DEFINITION

Classification: 16/75

(under subclass 72) Devices in which the spring elements are subjected to torsional stresses.