Pull ring for use with post binding mechanism

Details Pull ring for use with post binding mechanism Pull ring for use with post binding mechanism

1980-11-10

1983-03-08

Bullock, B. J.

Office supplies; artists and teachers materials

Book, album or cover

Element or attachment

D1904

Patent

active

D02681897

REFERENCES:
patent: D187515 (1960-03-01), Frambes
patent: 762419 (1904-06-01), Lawson
patent: 1397577 (1921-11-01), Engelland
patent: 3322128 (1967-05-01), Monahan et al.
Boorum & Pease Cat. 68; .COPYRGT.10/1967, p. 97; Ledger & Sectional Post Binder Key (middle of page).

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