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发明名称
摘要
申请公布号
SU552675(A1)
申请公布日期
1977.03.30
申请号
SU19752151779
申请日期
1975.06.30
申请人
发明人
分类号
H03K3/284;H03K3/353;(IPC1-7):H03K3/28;H03K3/35
主分类号
H03K3/284
代理机构
代理人
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地址
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