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发明名称
Manufacturing method of yoke plate
摘要
申请公布号
KR101092614(B1)
申请公布日期
2011.12.13
申请号
KR20090081960
申请日期
2009.09.01
申请人
发明人
分类号
B21D22/20;B21D28/32;B21D53/00
主分类号
B21D22/20
代理机构
代理人
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