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经营范围
发明名称
Feuchtigkeitsgeschuetztes Kapselmikrofon
摘要
申请公布号
DE743301(C)
申请公布日期
1943.12.22
申请号
DE1938M142655D
申请日期
1938.08.30
申请人
MIX & GENEST AG.
发明人
FUNCCIUS EMANUEL
分类号
H04R21/02
主分类号
H04R21/02
代理机构
代理人
主权项
地址
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