Office supplies; artists and teachers materials – Book – album or cover – Ring bound or looseleaf type
Patent
1989-07-17
1991-12-17
Burke, Wallace R.
Office supplies; artists and teachers materials
Book, album or cover
Ring bound or looseleaf type
Patent
active
D03224589
REFERENCES:
patent: 231394 (1880-08-01), Brown
patent: D257264 (1980-10-01), Savatteri
patent: 404594 (1889-06-01), Buhler
patent: 3979845 (1976-09-01), Janssen
patent: 4516871 (1985-05-01), Leitman
patent: 4575126 (1986-03-01), Grubbs
patent: 4838724 (1989-06-01), Spence, Jr.
Burke Wallace R.
Esselte Diaries
Schmidt P.
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