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发明名称
摘要
申请公布号
DE1439812(B2)
申请公布日期
1970.06.11
申请号
DE196300U0106
申请日期
1963.09.04
申请人
发明人
分类号
B21C37/04;H01L39/14;H01L39/24;(IPC1-7):H01V11/08
主分类号
B21C37/04
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代理人
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