Calculator

Details Calculator Calculator

2007-02-06

2007-02-06

Spear, Robert M. (Department: 2913)

Printing and office machinery

Typewriter or calculator

Calculator

Design Patent

active

29233620

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

REFERENCES:
patent: D145486 (1946-08-01), Lewis
patent: 3845614 (1974-11-01), Christ
patent: D333159 (1993-02-01), Peersmann
patent: D334214 (1993-03-01), Gonzales
patent: D359751 (1995-06-01), Yoshida
patent: D371570 (1996-07-01), Hong et al.
patent: D432506 (2000-10-01), Noguchi et al.
patent: D432560 (2000-10-01), Endrulat
patent: D442619 (2001-05-01), Fong
patent: D477351 (2003-07-01), Hsu
patent: D483796 (2003-12-01), Hsu
patent: D508071 (2005-08-01), Wang
patent: 2004/0074675 (2004-04-01), Miller-Kovach et al.

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