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发明名称
摘要
申请公布号
NL6510559(A)
申请公布日期
1966.02.14
申请号
NL19650010559
申请日期
1965.08.12
申请人
发明人
分类号
H04J3/06
主分类号
H04J3/06
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代理人
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