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经营范围
发明名称
Dispositif à décharge électronique
摘要
申请公布号
FR944006(A)
申请公布日期
1949.03.24
申请号
FRD944006
申请日期
1947.03.27
申请人
WESTERN ELECTRIC COMPANY INCORPORATED
发明人
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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