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经营范围
发明名称
Signal amplitude control circuit
摘要
申请公布号
GB1137250(A)
申请公布日期
1968.12.18
申请号
GB19670055748
申请日期
1967.12.07
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H03F3/387;H03G1/00;H03G3/20;H03G3/30
主分类号
H03F3/387
代理机构
代理人
主权项
地址
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