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经营范围
发明名称
MICROPHONE CIRCUIT
摘要
申请公布号
JPH10290128(A)
申请公布日期
1998.10.27
申请号
JP19970094218
申请日期
1997.04.11
申请人
SONY CORP
发明人
SUDO KAZUO;TERAJIMA KAZUHIKO
分类号
H04R1/04;H03F3/181;H04R3/00;(IPC1-7):H03F3/181
主分类号
H04R1/04
代理机构
代理人
主权项
地址
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