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经营范围
发明名称
Druckelektrischer Wandler, insbesondere Mikrofon
摘要
申请公布号
DE1297676(B)
申请公布日期
1969.06.19
申请号
DE196601S4675
申请日期
1966.07.07
申请人
SIEMENS AG
发明人
KRIEGER;FRIEDRICH DIPL.-ING.;PASCHER;ADOLF DIPL.-ING.
分类号
H04R1/22
主分类号
H04R1/22
代理机构
代理人
主权项
地址
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