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经营范围
发明名称
DC AMPLIFIER CIRCUIT
摘要
申请公布号
JPS6416006(A)
申请公布日期
1989.01.19
申请号
JP19870171862
申请日期
1987.07.09
申请人
NEC CORP
发明人
MURAKAMI KOU
分类号
H03F1/34;H03F3/34
主分类号
H03F1/34
代理机构
代理人
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地址
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