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发明名称
Methods for purifying manganese in metal state
摘要
申请公布号
US2396570(A)
申请公布日期
1946.03.12
申请号
US19410411429
申请日期
1941.09.18
申请人
PIETRO GUARESCHI
发明人
GUARESCHI PIETRO
分类号
C22B47/00
主分类号
C22B47/00
代理机构
代理人
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