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经营范围
发明名称
Operational amplifier circuit
摘要
申请公布号
US4987379(A)
申请公布日期
1991.01.22
申请号
US19890398017
申请日期
1989.08.24
申请人
U.S. PHILIPS CORPORATION
发明人
HUGHES, JOHN B.
分类号
H03F3/34;H03F3/45
主分类号
H03F3/34
代理机构
代理人
主权项
地址
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