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发明名称
MEHRFACH AUSGENUTZTE VERSTAERKERROEHRE.
摘要
申请公布号
DE1675162(U)
申请公布日期
1954.04.22
申请号
DE195100T1738U
申请日期
1951.10.18
申请人
TRANSFORMATOREN- UND APPARATEFABRIK PAUL METZ
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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