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发明名称
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摘要
申请公布号
US1752213(A)
申请公布日期
1930.03.25
申请号
US19290338515
申请日期
1929.02.08
申请人
GENERAL ELECTRIC COMPANY
发明人
TREANOR EDWARD D.
分类号
H01H9/00;H01H33/24
主分类号
H01H9/00
代理机构
代理人
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地址
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