Office supplies; artists and teachers materials – Book – album or cover – Ring bound or looseleaf type
Patent
1990-09-24
1992-01-28
Burke, Wallace R.
Office supplies; artists and teachers materials
Book, album or cover
Ring bound or looseleaf type
Patent
active
D03235289
REFERENCES:
patent: D59606 (1921-11-01), Skiles
patent: D193703 (1962-10-01), Price
patent: D212148 (1968-08-01), Dean
patent: D227619 (1973-07-01), Osher
patent: D292597 (1982-11-01), Gifford et al.
patent: 4306737 (1981-12-01), Errichiello
Burke Wallace R.
Netter George J.
Schmidt Pamela
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