Binder device releasably engaging aperture or notch of sheet – Coiled spring type sheet retainer
Patent
1997-02-05
1998-08-11
Fridie, Jr., Willmon
Binder device releasably engaging aperture or notch of sheet
Coiled spring type sheet retainer
B42F 306
Patent
active
057918023
ABSTRACT:
A bookbinding system for use in combination with a restaurant menu. The structure allows restaurant menus to be utilized in a high-volume environment and extends the useful life of such menus
REFERENCES:
patent: 4606554 (1986-08-01), Lederman
patent: 4907905 (1990-03-01), Fournier
patent: 5407232 (1995-04-01), DesJarlais
patent: 5417508 (1995-05-01), Friedman
Fridie Jr. Willmon
O'Connor Daniel J.
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