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发明名称
Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus
摘要
申请公布号
GB388808(A)
申请公布日期
1933.03.02
申请号
GB19310024682
申请日期
1931.09.02
申请人
AKTIENGESELLSCHAFT BROWN, BOVERI & CIE.
发明人
分类号
H02H7/127
主分类号
H02H7/127
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