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发明名称
摘要
申请公布号
NL7017069(A)
申请公布日期
1972.05.24
申请号
NL19700017069
申请日期
1970.11.21
申请人
发明人
分类号
G04C23/00;G04C23/16;H01H3/30;(IPC1-7):G04C23/16;H01H9/24
主分类号
G04C23/00
代理机构
代理人
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