Portfolio

Details Portfolio Portfolio

1990-01-16

1991-08-06

Burke, Wallace R.

Office supplies; artists and teachers materials

Book, album or cover

Patent

active

D03188787

REFERENCES:
patent: D59773 (1921-11-01), Raff
patent: D267152 (1982-12-01), Nerlinger, Jr.
patent: 1887338 (1932-11-01), Stephens
patent: 3572767 (1971-03-01), Learned
patent: 3860164 (1975-01-01), Dworkin
patent: 4577890 (1986-03-01), Boyett
patent: 4762341 (1988-08-01), Rabuse

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