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发明名称
摘要
申请公布号
FR2243467(A1)
申请公布日期
1975.04.04
申请号
FR19740030588
申请日期
1974.09.10
申请人
SEIKOSHA KK,JA
发明人
分类号
H01H43/10;G04B23/02;G04C21/20;G04C21/38;G04C23/16;(IPC1-7):G04C21/20
主分类号
H01H43/10
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