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发明名称
Method of treating argillaceous substances and products thereof
摘要
申请公布号
US2091548(A)
申请公布日期
1937.08.31
申请号
US19340741869
申请日期
1934.08.28
申请人
KAUFFMAN HAROLD L
发明人
KAUFFMAN HAROLD L.
分类号
B01J20/12
主分类号
B01J20/12
代理机构
代理人
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