Calculator

Details Calculator Calculator

2008-03-11

2008-03-11

Spear, Robert M. (Department: 2913)

Printing and office machinery

Typewriter or calculator

Calculator

Design Patent

active

29273885

CLAIM:
The ornamental design for a calculator, as shown.

REFERENCES:
patent: D433058 (2000-10-01), Okumura et al.
patent: D433059 (2000-10-01), Okumura et al.
patent: D441393 (2001-05-01), Chan
patent: D442619 (2001-05-01), Fong
patent: D468342 (2003-01-01), Bodum
patent: D488500 (2004-04-01), Matsuda et al.
patent: D513035 (2005-12-01), Lui
patent: D533213 (2006-12-01), Oas

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