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发明名称
Magnetic compass
摘要
申请公布号
USD476912(S1)
申请公布日期
2003.07.08
申请号
US20020167099F
申请日期
2002.09.10
申请人
CHANG GIN-SUNG
发明人
CHANG GIN-SUNG
分类号
主分类号
代理机构
代理人
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