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发明名称
Base and based electric device
摘要
申请公布号
US1989786(A)
申请公布日期
1935.02.05
申请号
US19330680024
申请日期
1933.07.12
申请人
WESTINGHOUSE LAMP COMPANY
发明人
BRUECKMANN EARL C.
分类号
H01J5/54
主分类号
H01J5/54
代理机构
代理人
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地址
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