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经营范围
发明名称
Improvements in or relating to electrical relay devices
摘要
申请公布号
GB525421(A)
申请公布日期
1940.08.28
申请号
GB19390005647
申请日期
1939.02.20
申请人
DOUGLAS CRISP GALL
发明人
分类号
H01H51/32
主分类号
H01H51/32
代理机构
代理人
主权项
地址
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