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经营范围
发明名称
Differential amplifier
摘要
申请公布号
US3075155(A)
申请公布日期
1963.01.22
申请号
US19590842935
申请日期
1959.09.28
申请人
ELCOR, INC.
发明人
REAVES JOHN H.
分类号
H03F3/28
主分类号
H03F3/28
代理机构
代理人
主权项
地址
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