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发明名称
Kohlemikrofonkapsel mit feuchtigkeitsgeschuetzter Kohlekammer
摘要
申请公布号
DE1161314(B)
申请公布日期
1964.01.16
申请号
DE1961S072788
申请日期
1961.03.02
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
ADAM ADOLF
分类号
H04M1/03;H04R21/02
主分类号
H04M1/03
代理机构
代理人
主权项
地址
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