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摘要
申请公布号
US1814807(A)
申请公布日期
1931.07.14
申请号
US19290389303
申请日期
1929.08.29
申请人
GENERAL ELECTRIC COMPANY
发明人
HUBER HERMAN J. H.
分类号
H01H1/54
主分类号
H01H1/54
代理机构
代理人
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