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发明名称
ELEKTROAKUSTISCHER WANDLER.
摘要
申请公布号
DE1766751(U)
申请公布日期
1958.05.14
申请号
DE195600E8146U
申请日期
1956.03.02
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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