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发明名称
Electric circuit element
摘要
申请公布号
US2796564(A)
申请公布日期
1957.06.18
申请号
US19530399456
申请日期
1953.12.21
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
DYMON JOSEPH J.
分类号
H01L21/00;H01L21/34;H01L21/479;H01L29/00;H01L29/24;H01L29/66
主分类号
H01L21/00
代理机构
代理人
主权项
地址
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