Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent
1993-04-30
1995-01-03
Echols, P. W.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer travels arcuate path
Travel in plane perpendicular to axis of rotation
402 37, B42F 1326
Patent
active
053780736
ABSTRACT:
A carrier rail for a ring binder which is provided with a plurality of ribs along the longitudinal axis of the rail.
REFERENCES:
patent: 936448 (1909-10-01), Hamacher
patent: 3246652 (1966-04-01), Lang
patent: 4368995 (1983-01-01), Cohen
Echols P. W.
World Wide Stationery Manufacturing Co. Ltd.
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