Ring binder

Office supplies; artists and teachers materials – Book – album or cover – Element or attachment

Patent

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Details

D19 27, D19 99, 1904

Patent

active

D03926737

REFERENCES:
patent: D377805 (1997-02-01), To
patent: D382593 (1997-08-01), To
patent: 2091188 (1937-08-01), St. Louis
patent: 3101719 (1963-08-01), Vernon
patent: 3404685 (1968-10-01), Vernon
Boorum & Pease, p. 36, see circled ring binder, left center .COPYRGT.1954.

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