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经营范围
发明名称
Gain controlled amplifier circuit
摘要
申请公布号
US4987380(A)
申请公布日期
1991.01.22
申请号
US19890390055
申请日期
1989.08.07
申请人
SANYO ELECTRIC CO., LTD.
发明人
ISHIKAWA, TSUTOMU
分类号
H03G3/12;H03G1/00;H03G3/20
主分类号
H03G3/12
代理机构
代理人
主权项
地址
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