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发明名称
摘要
申请公布号
SU452045(A1)
申请公布日期
1974.11.30
申请号
SU19731920237
申请日期
1973.05.23
申请人
发明人
分类号
H01H29/22;(IPC1-7):H01H29/22
主分类号
H01H29/22
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代理人
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地址
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