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发明名称
ULTRASCHALLKERAMIKMIKROPHON
摘要
申请公布号
DE2615593(A1)
申请公布日期
1976.10.21
申请号
DE19762615593
申请日期
1976.04.09
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO.,LTD.
发明人
HAYAKAWA,DAISHIRO;TANI,KENROKU
分类号
H04R17/00;B06B1/06;H04R17/02;(IPC1-7):H04R17/02
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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