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发明名称
Procédé pour établir des récipients à décharge avec photocathode
摘要
申请公布号
FR875978(A)
申请公布日期
1942.10.09
申请号
FRD875978
申请日期
1941.10.14
申请人
FERNSEH G. M. B. H.
发明人
分类号
H01J29/38
主分类号
H01J29/38
代理机构
代理人
主权项
地址
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