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发明名称
Electric glow lamp
摘要
申请公布号
US1897473(A)
申请公布日期
1933.02.14
申请号
US19290377006
申请日期
1929.07.09
申请人
GENERAL ELECTRIC COMPANY
发明人
FRIEDRICHSEN HEINRICH
分类号
G01R19/14;H01J17/40
主分类号
G01R19/14
代理机构
代理人
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地址
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