Keyboard

Recording – communication – or information retrieval equipment – Computer – data processor equipment – Peripheral equipment

Design Patent

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Design Patent

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D0517553

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

REFERENCES:
patent: 3698532 (1972-10-01), Dodds
patent: 5178477 (1993-01-01), Gambaro
patent: D345152 (1994-03-01), Mermod, Jr.
patent: 5336001 (1994-08-01), Lichtenberg
patent: D354279 (1995-01-01), Ciccone
patent: D357911 (1995-05-01), Grant et al.
patent: 5613786 (1997-03-01), Howell et al.
patent: 5689253 (1997-11-01), Hargreaves et al.
patent: 5775822 (1998-07-01), Cheng
patent: D453334 (2002-02-01), Hobday

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