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发明名称
MEANS FOR PROTECTING HAZARDOUS AREAS AGAINST ELECTRICAL FAILURE
摘要
申请公布号
GB1507023(A)
申请公布日期
1978.04.12
申请号
GB19740013679
申请日期
1975.06.24
申请人
NAT RES DEV CORP
发明人
分类号
H02H3/44;H02H9/00;(IPC1-7):H02H3/00
主分类号
H02H3/44
代理机构
代理人
主权项
地址
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