Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Element or attachment
Patent
1989-01-19
1993-10-26
Holtje, Nelson C.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Element or attachment
D19 54
Patent
active
D03407438
REFERENCES:
patent: D130436 (1941-11-01), Nissen, Jr.
patent: D157918 (1950-03-01), Stewart
patent: D196993 (1963-11-01), Green
patent: D333152 (1993-02-01), Anavil et al.
patent: 3977798 (1976-08-01), Kuparinen
Anavil Por
Deeley Julian M. H.
D.T.C. Industries Limited
Holtje Nelson C.
Thompson Martha
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