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发明名称
Microphone-speaker apparatus
摘要
申请公布号
EP1343352(B1)
申请公布日期
2006.07.05
申请号
EP20030004360
申请日期
2003.03.03
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
URA, TAKEFUMI
分类号
H04R3/02
主分类号
H04R3/02
代理机构
代理人
主权项
地址
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