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经营范围
发明名称
Fluessigkeitsgekuehlter Vakuumentladungsapparat, z. B. Quecksilberdampfgleichrichter
摘要
申请公布号
DE727096(C)
申请公布日期
1942.10.27
申请号
DE1931L078855D
申请日期
1931.07.14
申请人
DR. WALTER DAELLENBACH
发明人
分类号
H01J7/24
主分类号
H01J7/24
代理机构
代理人
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