Mechanical pencil

Details Mechanical pencil Mechanical pencil

2006-05-02

2006-05-02

Spear, Robert M. (Department: 2916)

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

Design Patent

active

D0520059

CLAIM:
The ornamental design for a mechanical pencil, as shown and described.

REFERENCES:
patent: D394455 (1998-05-01), Izushima
patent: D413145 (1999-08-01), Brescia et al.
patent: D417891 (1999-12-01), Izushima
patent: D436622 (2001-01-01), Rosenbaum
patent: D436996 (2001-01-01), Izushima
patent: D448805 (2001-10-01), Willat et al.
patent: D451549 (2001-12-01), Willat et al.
patent: D458964 (2002-06-01), Nakazawa
patent: D466156 (2002-11-01), Nakazawa
patent: D512099 (2005-11-01), Shibata

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