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发明名称
摘要
申请公布号
DE2027002(A1)
申请公布日期
1970.12.23
申请号
DE19702027002
申请日期
1970.06.02
申请人
发明人
分类号
H01L29/74;H01L29/08;(IPC1-7):H01L7/00
主分类号
H01L29/74
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