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发明名称
IRON BASED SINTERED ALLOY FOR VALVE SHEET AND ITS METHOD FOR PRODUCTION
摘要
申请公布号
KR1019950014352(B1)
申请公布日期
1995.11.25
申请号
KR1019930023125
申请日期
1993.11.02
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
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