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经营范围
发明名称
SEKUNDAERELEKTRONENVERVIELFACHER.
摘要
申请公布号
DE1677462(U)
申请公布日期
1954.06.03
申请号
DE195200P4139U
申请日期
1952.11.04
申请人
PHYSIKALISCH-TECHNISCHE WERKSTAETTEN PROF. DR. WALTER HEIMANN
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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