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发明名称
Perfectionnements aux grains d'alumine stabilisée par la mullite et à la préparation de ces grains
摘要
申请公布号
FR1028186(A)
申请公布日期
1953.05.20
申请号
FRD1028186
申请日期
1950.11.08
申请人
PHILLIPS PETROLEUM COMPANY
发明人
分类号
C01F7/44
主分类号
C01F7/44
代理机构
代理人
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