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发明名称
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摘要
申请公布号
US2630499(A)
申请公布日期
1953.03.03
申请号
US19500142273
申请日期
1950.02.03
申请人
THE GAMEWELL COMPANY
发明人
WELD FOSTER E.
分类号
H01H21/50
主分类号
H01H21/50
代理机构
代理人
主权项
地址
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