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发明名称
Method and apparatus for making lightweight slags
摘要
申请公布号
US2702407(A)
申请公布日期
1955.02.22
申请号
US19510255029
申请日期
1951.11.06
申请人
FRED OSBORNE
发明人
OSBORNE FRED
分类号
C03B19/10;C21B3/08
主分类号
C03B19/10
代理机构
代理人
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