Writing instrument

Details Writing instrument Writing instrument

1987-12-22

1990-12-04

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 36, D19 57

Patent

active

D03126595

REFERENCES:
patent: 825985 (1906-07-01), Schwertenberg
patent: 4026086 (1977-05-01), Langley
patent: 4060952 (1977-12-01), Hernandez
patent: 4582447 (1986-04-01), Itoh
patent: 4702633 (1987-10-01), Schmidt
B. A. Pargh Company, Inc., 1985-86 Fall Winter Catalog, See Staedtler dual marker upper right, p. 28.

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