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发明名称
摘要
申请公布号
FR1572686(A)
申请公布日期
1969.06.27
申请号
FRD1572686
申请日期
1968.06.20
申请人
发明人
分类号
G01J1/44;H03F1/30;H03F3/08;H03F3/45
主分类号
G01J1/44
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代理人
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