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经营范围
发明名称
FEEDBACK AMPLIFIER CIRCUIT
摘要
申请公布号
JPS6451704(A)
申请公布日期
1989.02.28
申请号
JP19870208745
申请日期
1987.08.21
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
OKAWA NORIO;HAGIMOTO KAZUO
分类号
H03F1/34;H03F1/48
主分类号
H03F1/34
代理机构
代理人
主权项
地址
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