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发明名称
ELEKTRONENROEHRE FUER SEHR HOHE FREQUENZEN.
摘要
申请公布号
DE1731581(U)
申请公布日期
1956.10.11
申请号
DE195300S1936U
申请日期
1953.12.16
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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