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经营范围
发明名称
Electric switch
摘要
申请公布号
US1753650(A)
申请公布日期
1930.04.08
申请号
US19270218643
申请日期
1927.09.10
申请人
GAY FRAZER W
发明人
GAY FRAZER W.
分类号
H01H1/54
主分类号
H01H1/54
代理机构
代理人
主权项
地址
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