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发明名称
Einrichtung fuer ein koaxial mit einem Lautsprecher angeordnetes Mikrofon
摘要
申请公布号
DE916957(C)
申请公布日期
1954.08.23
申请号
DE1952S029645
申请日期
1952.08.05
申请人
S. SIEDLE & SOENHE G.M.B.H.
发明人
BAER KARL;BAUMANN LUDWIG
分类号
H04R1/02;H04R1/08
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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