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经营范围
发明名称
Electric switch
摘要
申请公布号
US1749200(A)
申请公布日期
1930.03.04
申请号
US19250025993
申请日期
1925.04.27
申请人
SQUARE D COMPANY
发明人
VALKENBURG HERMON L. VAN
分类号
H01H50/88
主分类号
H01H50/88
代理机构
代理人
主权项
地址
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