Office supplies; artists and teachers materials – Teaching material – Demonstrator or exhibitor
Patent
1993-04-02
1994-11-01
Burke, Wallace R.
Office supplies; artists and teachers materials
Teaching material
Demonstrator or exhibitor
D21 20
Patent
active
D03520668
REFERENCES:
patent: D219885 (1971-02-01), Amundson
patent: D344097 (1994-02-01), Green
patent: 2703459 (1955-03-01), Paquette
patent: 2794642 (1957-06-01), O'Neill
patent: 2889634 (1959-06-01), Bringmann
patent: 4363628 (1982-12-01), Kirkpatrick
patent: 4431195 (1984-02-01), Brand
patent: 4799686 (1989-01-01), Martinex
Burgess Pamela
Burke Wallace R.
Gernstein Terry M.
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