Writing instrument

Details Writing instrument Writing instrument

1993-05-19

1994-11-22

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48

Patent

active

D03527360

REFERENCES:
patent: D172025 (1954-04-01), Hopstein
patent: D224846 (1972-09-01), Feuer
patent: D277331 (1985-01-01), Clement
patent: D279114 (1985-06-01), Adell
patent: D279481 (1985-07-01), Adell
patent: D331777 (1992-12-01), Sedlmeier et al.
patent: D338038 (1993-08-01), Oka et al.
patent: D342277 (1993-12-01), Yoshinaga et al.
patent: D342545 (1993-12-01), Kao
patent: D345577 (1994-03-01), Hohner
patent: 4539715 (1985-09-01), Clement

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