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经营范围
发明名称
Lamp cutout
摘要
申请公布号
US2443442(A)
申请公布日期
1948.06.15
申请号
US19470730850
申请日期
1947.02.25
申请人
GENERAL ELECTRIC COMPANY
发明人
BUTLER HENRY E.
分类号
H01J7/44
主分类号
H01J7/44
代理机构
代理人
主权项
地址
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