Calculating pen

Details Calculating pen Calculating pen

2006-09-26

2006-09-26

Albert, Elizabeth A. (Department: 2913)

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

Design Patent

active

D0529089

CLAIM:
The ornamental design for a calculating pen, as shown and described.

REFERENCES:
patent: 1402164 (1922-01-01), Houser
patent: 1601458 (1926-09-01), Strickland
patent: D153679 (1949-05-01), Gruber
patent: D471931 (2003-03-01), Lecce
patent: D495003 (2004-08-01), Cetera
patent: D501509 (2005-02-01), Lecce
patent: D519563 (2006-04-01), Pellissa Beneyto

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