Electronic keyboard instrument
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United States of America Patent
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Jan 6, 2009
Grant Date -
Mar 31, 2005
app pub date -
Sep 23, 2004
filing date -
Sep 25, 2003
priority date (Note) -
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Abstract
Ra) are provided respectively on the two frame bodies, separately from the keyboard unit-holding parts. The speaker unit-holding parts are capable of selectively holding one of a plurality of types of speaker units (SP).
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