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发明名称
Ladle for molten metal and method of sealing closures therein
摘要
申请公布号
US2348199(A)
申请公布日期
1944.05.09
申请号
US19430507222
申请日期
1943.10.20
申请人
FREEMAN HENRY G
发明人
FREEMAN HENRY G.
分类号
B22D41/08;B22D41/46
主分类号
B22D41/08
代理机构
代理人
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