Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument
Patent
1990-07-23
1992-06-02
Walsh, Donald P.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Marking instrument
D19 49, D19 51, D19 56
Patent
active
D03266834
REFERENCES:
patent: D190537 (1961-06-01), Schier
patent: D272750 (1984-02-01), Luntz
patent: D283901 (1986-05-01), Horntrich
patent: D292007 (1987-09-01), Ambasz
patent: D312478 (1990-11-01), Lecce
patent: D319845 (1991-09-01), Grotsch et al.
patent: D321718 (1991-11-01), Ambasz
patent: 4573817 (1986-03-01), Maki et al.
Thompson Martha
Tombow Pencil Co. Ltd.
Walsh Donald P.
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