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发明名称
Composite glass-metal article
摘要
申请公布号
US2219574(A)
申请公布日期
1940.10.29
申请号
US19370133547
申请日期
1937.03.29
申请人
HYGRADE SYLVANIA CORPORATION
发明人
FRAENCKEL VICTOR H.
分类号
H01J5/32;H01J9/26
主分类号
H01J5/32
代理机构
代理人
主权项
地址
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