Dual-use pen

Details Dual-use pen Dual-use pen

2001-05-11

2001-11-27

Holtje, Martie K. (Department: 2913)

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

CD19S049000, CD19S051000, CD19S056000

Design Patent

active

D0451139

CLAIM:
The ornamental design for a dual-use pen, as shown and described.

REFERENCES:
patent: D. 303683 (1989-09-01), Brook
patent: 1772868 (1930-08-01), Keeran
patent: 2370414 (1945-02-01), Ostrander
patent: 3985455 (1976-10-01), Wahlberg
patent: 5564850 (1996-10-01), Nagaoka
patent: 6227743 (2001-05-01), Robb

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