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发明名称
Elektrische Entladungsroehre mit Metallkolben
摘要
申请公布号
DE857545(C)
申请公布日期
1952.12.01
申请号
DE1943T002588D
申请日期
1943.06.09
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
BERG WALTER
分类号
H01J19/74
主分类号
H01J19/74
代理机构
代理人
主权项
地址
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