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经营范围
发明名称
Steel ingot making method and apparatus
摘要
申请公布号
GB832439(A)
申请公布日期
1960.04.13
申请号
GB19570039976
申请日期
1957.12.23
申请人
SEIJI NISHIKIORI
发明人
分类号
B22D23/00
主分类号
B22D23/00
代理机构
代理人
主权项
地址
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