Envelope

Details Envelope Envelope

1992-02-27

1993-08-31

Burke, Wallace R.

Office supplies; artists and teachers materials

Paper or pasteboard for writing or printing

Envelope

Patent

active

D03389138

REFERENCES:
patent: D275688 (1984-09-01), Tsai
patent: 1176640 (1916-03-01), Barber
patent: 1256582 (1918-02-01), Maxwell
patent: 2212587 (1940-08-01), Cronauer
patent: 3371850 (1968-03-01), Gorman
patent: 4729507 (1988-03-01), Kim

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