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发明名称
摘要
申请公布号
DE2507322(B2)
申请公布日期
1979.01.25
申请号
DE19752507322
申请日期
1975.02.20
申请人
TELEFONAKTIEBOLAGET LM ERICSSON, STOCKHOLM
发明人
GUSTAFSSON, SVEN GUSTAF, ENSKEDE (SCHWEDEN)
分类号
H01J9/38;H01J9/395;H01T4/00;(IPC1-7):H01J9/39;H01J7/20;H01T3/00
主分类号
H01J9/38
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