Calculator

Details Calculator Calculator

2006-11-21

2006-11-21

Spear, Robert M. (Department: 2913)

Printing and office machinery

Typewriter or calculator

Calculator

Design Patent

active

D0532440

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

REFERENCES:
patent: 4157588 (1979-06-01), Ebihara et al.
patent: D300539 (1989-04-01), Wong
patent: D305906 (1990-02-01), Takahisa et al.
patent: D314004 (1991-01-01), Ida
patent: D370472 (1996-06-01), Scianna
patent: D410440 (1999-06-01), Carnell
patent: D432560 (2000-10-01), Endrulat
patent: D468342 (2003-01-01), Bodum
patent: D505338 (2005-05-01), Li
patent: D508071 (2005-08-01), Wang
patent: 2004/0074675 (2004-04-01), Miller-Kovach et al.

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