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经营范围
发明名称
Protection of alternating current systems
摘要
申请公布号
US2180192(A)
申请公布日期
1939.11.14
申请号
US19390256525
申请日期
1939.02.15
申请人
GENERAL ELECTRIC COMPANY
发明人
BIERMANNS JOSEF
分类号
H02H9/08
主分类号
H02H9/08
代理机构
代理人
主权项
地址
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