Binder device releasably engaging aperture or notch of sheet – Miscellaneous – Sheet lifters
Patent
1988-06-03
1990-02-27
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Miscellaneous
Sheet lifters
281 45, B42F 1300
Patent
active
049041045
ABSTRACT:
A clamping folder for unperforated written material containing a rear folder cover (14), which is connected using a folded back (13) with a narrow strip (17), to which is welded a front sheet made from transparent or translucent plastic. A clip (16) is used for securing the written matter and is secured against removal in that it engages on one edge (19) of the folder. Edge (19) can e.g. be formed by a slot (15). The engagement of clip (16) for preventing removal can take place on both the front and rear sides.
REFERENCES:
patent: 3099269 (1963-07-01), Sorensen
Bell Paul A.
Hetzel & Co.
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