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发明名称
METHOD AND DEVICE FOR PRODUCING A SINTERED METAL BLANK WITH INTERIOR HELICAL RECESSES
摘要
申请公布号
KR20020042674(A)
申请公布日期
2002.06.05
申请号
KR1020027003088
申请日期
2002.03.08
申请人
发明人
分类号
B22F5/10
主分类号
B22F5/10
代理机构
代理人
主权项
地址
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