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发明名称
Procédé d'activation de cathode et dispositif à décharge électronique fabriqué selon ce procédé.
摘要
申请公布号
CH265035(A)
申请公布日期
1949.11.15
申请号
CHD265035
申请日期
1946.07.25
申请人
STANDARD TELEPHONE ET RADIO S. A.
发明人
STANDARD TELEPHONE ET RADIO S. A.
分类号
H01J9/04
主分类号
H01J9/04
代理机构
代理人
主权项
地址
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