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发明名称
ELEKTRONENROEHRE FUER SEHR HOHE FREQUENZEN MIT GEBUENDELTER ELEKTRONENSTROEMUNG.
摘要
申请公布号
DE1728117(U)
申请公布日期
1956.08.16
申请号
DE195400S4808U
申请日期
1954.09.21
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
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主分类号
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