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发明名称
Elektroakustisk omformer.
摘要
申请公布号
DK137820(B)
申请公布日期
1978.05.08
申请号
DK19720002927
申请日期
1972.06.12
申请人
JOSE JUAN BERTAGNI
发明人
JOSE JUAN BERTAGNI
分类号
H04R9/02;H04R9/06;(IPC1-7):H04R9/02
主分类号
H04R9/02
代理机构
代理人
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