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发明名称
ELECTROMAGNET
摘要
申请公布号
CA622810(A)
申请公布日期
1961.06.27
申请号
CAD622810
申请日期
申请人
SQUARE D. COMPANY
发明人
JOHN D. LEITCH
分类号
主分类号
代理机构
代理人
主权项
地址
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