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发明名称
Preparation of cation exchange material from coal
摘要
申请公布号
US2693452(A)
申请公布日期
1954.11.02
申请号
US19500177764
申请日期
1950.08.04
申请人
DE DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG
发明人
GOEDKOOP MARTINUS L.
分类号
B01J39/24
主分类号
B01J39/24
代理机构
代理人
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