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发明名称
摘要
申请公布号
NL7017902(A)
申请公布日期
1971.06.15
申请号
NL19700017902
申请日期
1970.12.08
申请人
发明人
分类号
H01H33/56;(IPC1-7):H01H33/54
主分类号
H01H33/56
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代理人
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地址
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