Writing instrument

Details Writing instrument Writing instrument

1991-12-04

1993-12-14

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 56

Patent

active

D03422780

REFERENCES:
patent: D124248 (1940-12-01), Dreyfuss
patent: D216844 (1970-03-01), Shimada
patent: D273876 (1984-05-01), Evenson
patent: D313042 (1990-12-01), Lecce
patent: D319845 (1991-09-01), Grotsch et al.
patent: D324543 (1992-03-01), Poisson

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