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发明名称
Improvements in or relating to coupling devices for use in the production, amplification or reception of ultra-short waves
摘要
申请公布号
GB507473(A)
申请公布日期
1939.06.14
申请号
GB19370025012
申请日期
1937.09.14
申请人
OTTO BORMANN
发明人
分类号
H01Q13/00
主分类号
H01Q13/00
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