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公开(公告)号：EP2328359A4
公开(公告)日：2013-06-05
申请号：EP09814308
申请日：2009-09-17
Applicant: PANASONIC CORP
Inventor： TAKEDA KATSU , TADA MASAKI , MINAKUCHI MASASHI , KONNO FUMIYASU
IPC: H04R17/10
CPC classification number: H04R17/10 , H04R2217/03
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