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经营范围
发明名称
Electron guns
摘要
申请公布号
GB1041478(A)
申请公布日期
1966.09.07
申请号
GB19640042395
申请日期
1964.10.16
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
分类号
H01J29/48
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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