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经营范围
发明名称
Improvements relating to electromagnetic relays
摘要
申请公布号
GB556654(A)
申请公布日期
1943.10.14
申请号
GB19420006093
申请日期
1942.05.06
申请人
ALFRED GRAHAM & CO. LIMITED;CYRIL HUGH VAUGHAN
发明人
分类号
H01H50/34
主分类号
H01H50/34
代理机构
代理人
主权项
地址
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