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发明名称
Earphone having sound insulation means
摘要
申请公布号
EP2424269(A3)
申请公布日期
2013.10.30
申请号
EP20110003155
申请日期
2011.04.14
申请人
KAKUMOTO, JUN-ICHI
发明人
KAKUMOTO, JUN-ICHI
分类号
H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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