Electronic keyboard instrument

Musical instruments – Keyboard type

Design Patent

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Details

CD17S007000

Design Patent

active

29235990

CLAIM:
The ornamental design for an electronic keyboard instrument, as shown.

REFERENCES:
patent: D305772 (1990-01-01), Kitsuyu
patent: D326106 (1992-05-01), Tatshumi
patent: D369175 (1996-04-01), Nakada
patent: D404059 (1999-01-01), Miura et al.
patent: D411563 (1999-06-01), Okamura
patent: D483793 (2003-12-01), Kitazawa
patent: D508070 (2005-08-01), Tanaka
patent: D510381 (2005-10-01), Okamura et al.
patent: D518503 (2006-04-01), Nagayama

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