Bookbinding: process and apparatus – Process – Of edge fastening
Patent
1988-06-03
1991-03-26
Bell, Paul A.
Bookbinding: process and apparatus
Process
Of edge fastening
281 151, 281 211, 281 29, 281 35, 412 4, 412 20, 412 33, B42B 500
Patent
active
050024477
ABSTRACT:
A binding provided with stationary transparent pockets which can receive sheets of any type of materials, such as sheets of paper, cardboard, photographs, samples of floor or wall coverings, and the like. The cover of the binding comprises a transparent double sheet of the same material as the pockets. This sheet is heat-sealed together with pockets in the zone of folding, while two cardboard sheets are glued to the inside of the double sheet in the zone comprising two flat surfaces.
REFERENCES:
patent: 2390125 (1945-12-01), Schade
patent: 3206225 (1965-09-01), Oleson
patent: 3884742 (1975-05-01), Roberts
patent: 4377430 (1983-03-01), Bexley et al.
patent: 4830404 (1989-05-01), Lu
patent: 4844508 (1989-07-01), Choi
Bell Paul A.
Jowa, S.A.
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