Writing instrument

Details Writing instrument Writing instrument

1992-10-16

1994-03-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 51, D19 56, D19 57

Patent

active

D03451755

REFERENCES:
patent: D11737 (1880-04-01), Aiken
patent: D11806 (1880-06-01), Aiken
patent: D145431 (1946-08-01), Flanagan
patent: D186923 (1959-12-01), Williams
patent: D187315 (1960-02-01), Williams
patent: D187831 (1960-05-01), Buryan
patent: D333677 (1993-03-01), Giralt

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