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发明名称
FEUCHTIGKEITSGESCHUTZTE KOHLEMIKROPHONKAPSEL
摘要
申请公布号
AT338896(B)
申请公布日期
1977.09.26
申请号
AT19750005500
申请日期
1975.07.16
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04R1/00;H04R1/44;H04R21/02;(IPC1-7):H04R21/02;H04M1/03
主分类号
H04R1/00
代理机构
代理人
主权项
地址
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