Portable keyboard

Details Portable keyboard Portable keyboard

2007-09-04

2007-09-04

Simmons, Ian (Department: 2916)

Musical instruments

Keyboard type

CD17S002000

Design Patent

active

29256679

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

REFERENCES:
patent: 3541912 (1970-11-01), Radke
patent: D245197 (1977-07-01), Noury, Jr.
patent: 4126070 (1978-11-01), Hill
patent: D256366 (1980-08-01), Dworsky
patent: D296338 (1988-06-01), Sgroi
patent: D312264 (1990-11-01), Amiya
patent: 5029796 (1991-07-01), Schoenig
patent: D349127 (1994-07-01), Nelson
patent: 6740800 (2004-05-01), Cunningham
patent: D539331 (2007-03-01), Blake

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