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发明名称
Controllable electric discharge tube operating with alternating current
摘要
申请公布号
US2242351(A)
申请公布日期
1941.05.20
申请号
US19390283036
申请日期
1939.07.06
申请人
FIDES GESELLSCHAFT FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN MIT BESCHRANKTER HAFTUNG
发明人
ETZRODT ADALBERT
分类号
H01J17/56
主分类号
H01J17/56
代理机构
代理人
主权项
地址
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