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发明名称
摘要
申请公布号
SU454603(A2)
申请公布日期
1974.12.25
申请号
SU19731900031
申请日期
1973.04.03
申请人
发明人
分类号
H01H43/10;(IPC1-7):H01H43/10
主分类号
H01H43/10
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