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发明名称
摘要
申请公布号
NL6916128(A)
申请公布日期
1971.04.27
申请号
NL19690016128
申请日期
1969.10.25
申请人
发明人
分类号
H03G3/34;(IPC1-7):H03G3/34
主分类号
H03G3/34
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代理人
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地址
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