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发明名称
Lost Foam Riser
摘要
申请公布号
KR100484501(B1)
申请公布日期
2005.04.20
申请号
KR20020067230
申请日期
2002.10.31
申请人
发明人
分类号
B22C9/04;(IPC1-7):B22C9/04
主分类号
B22C9/04
代理机构
代理人
主权项
地址
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