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发明名称
Richtmikrofon
摘要
申请公布号
DE2021721(B)
申请公布日期
1971.03.04
申请号
DED2021721
申请日期
1970.05.04
申请人
SENNHEISER ELECTRONIC DR.-ING. FRITZ SENNHEISER
发明人
WARNING,PAUL-FRIEDRICH
分类号
H04R1/38;(IPC1-7):H04R1/38
主分类号
H04R1/38
代理机构
代理人
主权项
地址
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