Ball-point pen

Details Ball-point pen Ball-point pen

1992-01-09

1993-06-29

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 56, D19 57

Patent

active

D03369226

REFERENCES:
patent: D26395 (1896-12-01), Kraus
patent: D87262 (1932-06-01), Hauton
patent: D275297 (1984-08-01), Ohyabu
patent: D277392 (1985-01-01), Salinger
patent: D287860 (1987-01-01), McShirley
patent: D313246 (1990-12-01), Porsche

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