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发明名称
Spheroidal alumina
摘要
申请公布号
US2666749(A)
申请公布日期
1954.01.19
申请号
US19510257634
申请日期
1951.11.21
申请人
UNIVERSAL OIL PRODUCTS COMPANY
发明人
HOEKSTRA JAMES
分类号
B01J13/00;B01J21/00;C01F7/02
主分类号
B01J13/00
代理机构
代理人
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地址
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