Writing instrument

Details Writing instrument Writing instrument

1989-08-14

1991-12-17

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 55

Patent

active

D03224600

REFERENCES:
patent: D19277 (1889-08-01), Todd, Jr.
patent: D124230 (1940-12-01), Dreyfuss
patent: D127598 (1941-06-01), Gower
patent: D138825 (1944-09-01), Waldinger
patent: D138826 (1944-09-01), Waldinger
patent: D143050 (1945-11-01), Waldinger
patent: D258896 (1981-03-01), Massoni et al.
patent: D286164 (1986-10-01), Tinz
patent: D287603 (1987-01-01), Bruhn
patent: D309633 (1990-07-01), Itoh
patent: 628690 (1899-07-01), Burton

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