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发明名称
Electromagnetic control device
摘要
申请公布号
US2125150(A)
申请公布日期
1938.07.26
申请号
US19380193612
申请日期
1938.03.03
申请人
OTIS ELEVATOR COMPANY
发明人
BRUNS WILLIAM HENRY
分类号
H01H50/46;H01H51/30;H02H11/00
主分类号
H01H50/46
代理机构
代理人
主权项
地址
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