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发明名称
Elektroakustischer Wandler, insbesondere nach dem elektrodynamischen Prinzip
摘要
申请公布号
DE844467(C)
申请公布日期
1952.07.21
申请号
DE1950S020728
申请日期
1950.11.01
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
DARRE ALLAN DR.;GRAUL SIEGFRIED DIPL.-ING.
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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