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经营范围
发明名称
Magnet device with double fixing positions for changing the nagnetic circuit
摘要
申请公布号
GB9910458(D0)
申请公布日期
1999.07.07
申请号
GB19990010458
申请日期
1999.05.07
申请人
SHENG, CHIH-SHENG
发明人
分类号
H01F7/122;H01F7/16;H01F7/18
主分类号
H01F7/122
代理机构
代理人
主权项
地址
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