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经营范围
发明名称
Improvements in devices for securing electrical plants against faults in insulation
摘要
申请公布号
GB409495(A)
申请公布日期
1934.05.03
申请号
GB19330008046
申请日期
1933.03.16
申请人
ANDREAS MARIUS HASLEV
发明人
分类号
H02H3/04
主分类号
H02H3/04
代理机构
代理人
主权项
地址
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