Writing instrument

Details Writing instrument Writing instrument

1992-06-29

1993-12-28

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 49, D19 56, D19 57

Patent

active

D03427560

REFERENCES:
patent: D57405 (1921-03-01), Wahl
patent: D70956 (1926-08-01), Gregory
patent: D87262 (1932-06-01), Hauton
patent: D192836 (1962-05-01), Zierhut
patent: D267655 (1983-01-01), Verona
patent: D277392 (1985-01-01), Salinger
patent: D287860 (1987-01-01), McShirley

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