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发明名称
摘要
申请公布号
FR2066025(A5)
申请公布日期
1971.08.06
申请号
FR19700037288
申请日期
1970.10.15
申请人
SINGER CY
发明人
分类号
H03B23/00;(IPC1-7):H03K3/00;G01R23/00
主分类号
H03B23/00
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