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发明名称
Perfectionnements à la fabrication des dispositifs à décharge électrique
摘要
申请公布号
FR821894(A)
申请公布日期
1937.12.15
申请号
FRD821894
申请日期
1937.05.14
申请人
THE M-O VALVE COMPANY LIMITED
发明人
分类号
H01J5/32
主分类号
H01J5/32
代理机构
代理人
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地址
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