US PATENT SUBCLASS 16 / 322
.~.~.~ Having spring force adjustment

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

221  DF  HINGE {32}
319  DF  .~ Including means to hold or retard hinged members against pivotal movement (e.g., catch) {8}
321  DF  .~.~ Resiliently biased catch {7}
322.~.~.~ Having spring force adjustment

DEFINITION

Classification: 16/322

Having spring force adjustment:

(under subclass 321) Hinge including means by which the force exerted by the elastically deformable means to move the two elements or portions may be varied.