Office supplies; artists and teachers materials – Teaching material – Demonstrator or exhibitor
Patent
1992-10-29
1994-06-07
Burke, Wallace R.
Office supplies; artists and teachers materials
Teaching material
Demonstrator or exhibitor
D21 22
Patent
active
D03476561
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patent: 2102535 (1937-12-01), Johnson
patent: 2283583 (1942-05-01), Singer
patent: 2370229 (1945-02-01), Buckley
patent: 4326711 (1982-04-01), Giallombardo
patent: 5133666 (1992-07-01), Levy
Burgess Pamela
Burke Wallace R.
Gernstein Terry M.
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