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经营范围
发明名称
PREAMPLIFIER CIRCUIT
摘要
申请公布号
JPS6221311(A)
申请公布日期
1987.01.29
申请号
JP19850161597
申请日期
1985.07.22
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MANO TSUNEO;SHIBATA SHINTARO;YAMADA JUNZO
分类号
H03F3/70;H03F99/00
主分类号
H03F3/70
代理机构
代理人
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地址
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