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经营范围
发明名称
Improvements in or relating to electric switching apparatus
摘要
申请公布号
GB347338(A)
申请公布日期
1931.04.30
申请号
GB19300004181
申请日期
1930.02.07
申请人
ROBERT CONSTANTINE GRASEBY
发明人
分类号
H01H71/24
主分类号
H01H71/24
代理机构
代理人
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