Ball point pen

Details Ball point pen Ball point pen

1988-06-23

1991-05-07

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 56

Patent

active

D03167267

REFERENCES:
patent: D124230 (1940-12-01), Dreyfuss
patent: D253660 (1979-12-01), Carre
patent: D259642 (1981-06-01), Gomez
patent: D259793 (1981-07-01), Carre
patent: D261531 (1981-10-01), Delcroix
patent: D270843 (1983-10-01), Itoh
patent: D279115 (1985-06-01), Nishida
patent: D309633 (1990-07-01), Itoh
patent: 4717275 (1988-01-01), Burkhardt, Jr.
patent: 4765767 (1988-08-01), Marynissen et al.

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