Envelope

Details Envelope Envelope

1997-05-20

1999-01-26

Holtje, Martie K.

Office supplies; artists and teachers materials

Paper or pasteboard for writing or printing

Envelope

1901

Patent

active

D04047591

REFERENCES:
patent: D322456 (1991-12-01), Forbes, Jr.
patent: 1205100 (1916-11-01), Marston et al.
patent: 2189273 (1940-02-01), Shomaker
patent: 3322329 (1967-05-01), Castaneda et al.
patent: 3946938 (1976-03-01), Kranz
patent: 4607749 (1986-08-01), Jacob
patent: 4765485 (1988-08-01), Perkins

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