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发明名称
Method of producing pure alumina
摘要
申请公布号
US2217099(A)
申请公布日期
1940.10.08
申请号
US19370162797
申请日期
1937.09.07
申请人
SIGURD BURMAN AXEL
发明人
BURMAN AXEL SIGURD
分类号
C01F7/22
主分类号
C01F7/22
代理机构
代理人
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地址
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