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发明名称
Method of making tubular glass-to-metal seals
摘要
申请公布号
US2697309(A)
申请公布日期
1954.12.21
申请号
US19490085518
申请日期
1949.04.05
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
GATES PAUL E.
分类号
H01J5/26;H01L23/04
主分类号
H01J5/26
代理机构
代理人
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地址
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