Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Element or attachment
Patent
1987-03-27
1990-01-16
Holtje, Nelson C.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Element or attachment
D19 41, D19 56
Patent
active
D03055515
REFERENCES:
patent: D146181 (1947-01-01), Lippincott
patent: D177359 (1956-04-01), Young et al.
patent: D187445 (1960-03-01), Marynissen
patent: D274339 (1984-06-01), Malamoud
patent: D284584 (1986-07-01), Zierhut
patent: 3251343 (1966-05-01), Weisenburg et al.
Adams Bruce L.
Holtje Nelson C.
Pentel Kabushiki Kaisha
Thompson Martha
Wilks Van C.
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