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发明名称
摘要
申请公布号
DD124699(A1)
申请公布日期
1977.03.09
申请号
DD19750190181
申请日期
1975.12.16
申请人
发明人
分类号
H03K17/08;H03K17/64;(IPC1-7):H03K17/08
主分类号
H03K17/08
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代理人
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