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发明名称
Stopper for metallurgical ladles
摘要
申请公布号
US2296059(A)
申请公布日期
1942.09.15
申请号
US19410397161
申请日期
1941.06.09
申请人
SAGE FREDERICK L
发明人
SAGE FREDERICK L.
分类号
B22D41/18
主分类号
B22D41/18
代理机构
代理人
主权项
地址
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