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发明名称
ELEKTRONENROEHRE, INSBESONDERE FUER SEHR HOHE FREQUENZEN.
摘要
申请公布号
DE1635712(U)
申请公布日期
1952.03.13
申请号
DE195000S0559U
申请日期
1950.01.13
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
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