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发明名称
Electrode for gaseous conduction lamps and method of making same
摘要
申请公布号
US1874127(A)
申请公布日期
1932.08.30
申请号
US19290386813
申请日期
1929.08.19
申请人
FRANK SCHAEFER;DUFFENDACK ORA S
发明人
SCHAEFER FRANK;DUFFENDACK ORA S.
分类号
H01J17/06
主分类号
H01J17/06
代理机构
代理人
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地址
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