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经营范围
发明名称
Electric switch
摘要
申请公布号
US2346311(A)
申请公布日期
1944.04.11
申请号
US19410376636
申请日期
1941.01.30
申请人
H. A. DOUGLAS MFG. CO.
发明人
JOHNSON ELMER E.
分类号
H01H15/02
主分类号
H01H15/02
代理机构
代理人
主权项
地址
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