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发明名称
Prüfgerät für Erdung und Nullung
摘要
申请公布号
AT194951(B)
申请公布日期
1958.01.25
申请号
ATD194951
申请日期
1956.10.29
申请人
SIEMENS & HALSKE GESELLSCHAFT M. B. H.
发明人
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主分类号
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