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经营范围
发明名称
Improvements in or relating to electric switching devices
摘要
申请公布号
GB781260(A)
申请公布日期
1957.08.14
申请号
GB19520032591
申请日期
1952.12.23
申请人
MINISTER OF SUPPLY
发明人
GREEN HARRY NORMAN
分类号
H01H43/30;H01H71/20
主分类号
H01H43/30
代理机构
代理人
主权项
地址
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