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发明名称
Perfectionnement à la fabrication des tubes à vide
摘要
申请公布号
FR899661(A)
申请公布日期
1945.06.07
申请号
FRD899661
申请日期
1943.07.09
申请人
SOCIETE ANONYME DES INDUSTRIES RADIOELECTRIQUES
发明人
分类号
H01J9/385
主分类号
H01J9/385
代理机构
代理人
主权项
地址
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