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经营范围
发明名称
Rotary electromagnets
摘要
申请公布号
GB779186(A)
申请公布日期
1957.07.17
申请号
GB19550036339
申请日期
1955.12.19
申请人
LEE SPRING COMPANY INC.
发明人
分类号
H01F7/13
主分类号
H01F7/13
代理机构
代理人
主权项
地址
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