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发明名称
Blowing tube for molten metal
摘要
申请公布号
US2985441(A)
申请公布日期
1961.05.23
申请号
US19600014098
申请日期
1960.03.10
申请人
GIBSON ROBERT M
发明人
GIBSON ROBERT M.
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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