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经营范围
发明名称
Preparation of activated carbon
摘要
申请公布号
US2003278(A)
申请公布日期
1935.05.28
申请号
US19330687063
申请日期
1933.08.28
申请人
THE CLEVELAND CLIFFS IRON COMPANY
发明人
OLSON EDGAR T.
分类号
C01B31/08
主分类号
C01B31/08
代理机构
代理人
主权项
地址
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