Looseleaf binder

Office supplies; artists and teachers materials – Book – album or cover – Ring bound or looseleaf type

Patent

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D1904

Patent

active

D02478170

REFERENCES:
patent: 1269859 (1918-06-01), Ring
patent: 1513518 (1924-10-01), Pott
patent: 1562320 (1925-11-01), Farley
patent: 2099472 (1937-11-01), Emery

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