US PATENT SUBCLASS 16 / 313
.~.~.~ And rolling element

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

221  DF  HINGE {32}
309  DF  .~ Gravitating hinge having vertical axis {3}
312  DF  .~.~ Including cam surface and follower {4}
313.~.~.~ And rolling element {2}
314  DF  .~.~.~.~> Between opposing surfaces
315  DF  .~.~.~.~> And detent in cam surface

DEFINITION

Classification: 16/313

And rolling element:

(under subclass 312) Hinge wherein the follower associated with the second hinged member* comprises an element rotatable about an axis and which has rolling contact with the sloped or curved surface.