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发明名称
MICROPHONE AMPLIFIER
摘要
申请公布号
IE38128(B1)
申请公布日期
1978.01.04
申请号
IE19730001478
申请日期
1973.08.23
申请人
ISEC
发明人
分类号
H03G7/06;H04R3/04;(IPC1-7):H04R3/00
主分类号
H03G7/06
代理机构
代理人
主权项
地址
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