US PATENT SUBCLASS 402 / 69
.~.~ Spring biased

Current as of: June, 1999
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402 /   HD   BINDER DEVICE RELEASABLY ENGAGING APERTURE OR NOTCH OF SHEET

60  DF  SHEET RETAINER WITH RELEASABLE KEEPER (E.G., HOLD DOWN, ETC.) {3}
68  DF  .~ Keeper including apertured or recessed sheet retainer receiving component {1}
69.~.~ Spring biased

DEFINITION

Classification: 402/69

(under subclass 68) Device wherein the keeper is urged toward or away from a secured position by a resilient force-transmitting element.