Ball-point pen

Details Ball-point pen Ball-point pen

1987-02-26

1990-05-29

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 35, D19 41

Patent

active

D03082261

REFERENCES:
patent: D155996 (1949-11-01), Gowland
patent: D195870 (1963-08-01), Ogg
patent: D206272 (1966-11-01), Gershen
patent: D282248 (1986-01-01), Carbajales Santa-Eulalia
patent: D298263 (1988-10-01), Perry et al.

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