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发明名称
Nach einem Kompensationsverfahren arbeitender Frequenzmesser
摘要
申请公布号
DE899918(C)
申请公布日期
1953.12.17
申请号
DE1938A011757D
申请日期
1938.05.25
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
G01R23/00
主分类号
G01R23/00
代理机构
代理人
主权项
地址
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