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发明名称
摘要
申请公布号
CH535370(A4)
申请公布日期
1972.07.31
申请号
CHD535370D
申请日期
1970.04.10
申请人
发明人
分类号
G04C3/16;G04C13/11;G04C15/00;H02K21/14;H02K29/00;H02K37/14
主分类号
G04C3/16
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