US PATENT SUBCLASS 402 / 6
.~ With means to apply tension thereto
Current as of:
June, 1999
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402 /
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BINDER DEVICE RELEASABLY ENGAGING APERTURE OR NOTCH OF SHEET
5
DF
PIVOTAL LINK TYPE SHEET RETAINER
{1}
6
.~ With means to apply tension thereto
DEFINITION
Classification: 402/6
(under subclass 5) Device including a mechanical movement (e.g., linkage system, spring, screw rod with nut, etc.) which retracts a portion of the length of the sheet retainer to reduce the sheet storage capacity of the device.