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发明名称
Method of bluing coal
摘要
申请公布号
US2312898(A)
申请公布日期
1943.03.02
申请号
US19410373712
申请日期
1941.01.09
申请人
AMERICAN CYANAMID COMPANY
发明人
HAM GARNET P.;BARNES ROBERT B.
分类号
C25D5/54;C25D9/08
主分类号
C25D5/54
代理机构
代理人
主权项
地址
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