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发明名称
Ultrakurzwellenroehre, insbesondere Magnetfeldroehre
摘要
申请公布号
DE749252(C)
申请公布日期
1945.01.12
申请号
DED749252D
申请日期
1940.04.07
申请人
发明人
FRITZ DR. KARL
分类号
H01J25/54
主分类号
H01J25/54
代理机构
代理人
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地址
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