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发明名称
Perfectionnement aux microphones
摘要
申请公布号
FR1042161(A)
申请公布日期
1953.10.29
申请号
FRD1042161
申请日期
1951.09.13
申请人
发明人
BOUYER PAUL
分类号
H04R27/04
主分类号
H04R27/04
代理机构
代理人
主权项
地址
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