Books – strips – and leaves – Book – element thereof – or accessory therefor – Binding
Patent
1975-05-12
1976-07-20
Schnall, Jerome
Books, strips, and leaves
Book, element thereof, or accessory therefor
Binding
281 25R, 402 63, 402 68, B42D 100
Patent
active
039703312
ABSTRACT:
A binder element for books and the like is provided wherein a first backing strip having a series of studs thereon, which are provided with ratchet teeth, is used in conjunction with a second backing strip for the opposite side, wherein the second strip has a series of holes each with a mating ratchet tooth for engagement with the teeth on the studs. A blocking means is provided to hold the ratchet teeth permanently in engagement with each other. After the binding has been applied, any excess length of the studs can be broken or cut off.
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patent: 2894426 (1959-11-01), Rapata
patent: 3260264 (1966-07-01), McKowen
patent: 3340635 (1967-09-01), McIntosh
patent: 3533511 (1970-10-01), Giampa
patent: 3596929 (1971-08-01), Abildgaard et al.
Minnesota Mining and Manufacturing Company
Schnall Jerome
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