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经营范围
发明名称
Dampfgefuellte Gluehkathodenroehre
摘要
申请公布号
DE604129(C)
申请公布日期
1934.10.15
申请号
DE1929I038235D
申请日期
1929.06.01
申请人
INTERNATIONAL GENERAL ELECTRIC COMPANY
发明人
分类号
H01J19/68
主分类号
H01J19/68
代理机构
代理人
主权项
地址
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