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发明名称
Lance apparatus for treating molten metals
摘要
申请公布号
US3379428(A)
申请公布日期
1968.04.23
申请号
US19650501692
申请日期
1965.10.22
申请人
KOPPERS COMPANY, INC.
发明人
DORTENZO ALEXANDER T.;STANDLEY FLOYD F.
分类号
C21C5/46
主分类号
C21C5/46
代理机构
代理人
主权项
地址
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