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发明名称
Elektromechanischer Wandler
摘要
申请公布号
DE893862(C)
申请公布日期
1953.10.19
申请号
DE1951S024750
申请日期
1951.09.12
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
WILDHAGEN GERHART DIPL.-PHYS.
分类号
H04R19/00
主分类号
H04R19/00
代理机构
代理人
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