Office supplies; artists and teachers materials – Bookend
Patent
1990-03-14
1991-12-17
Burke, Wallace R.
Office supplies; artists and teachers materials
Bookend
281 42
Patent
active
D03224597
REFERENCES:
patent: 1067927 (1913-07-01), Knowles
patent: 2576783 (1951-11-01), Dowey
patent: 4908912 (1990-03-01), Grant
patent: 4932680 (1990-06-01), Rivera
Burke Wallace R.
Schmidt Pamela
Universal Network, Inc.
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