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发明名称
MANUFACTURE OF SPHERICAL ALUMINA PARTICLES
摘要
申请公布号
GB1542557(A)
申请公布日期
1979.03.21
申请号
GB19770039718
申请日期
1977.09.23
申请人
NIKKI UNIVERSAL CO LTD
发明人
分类号
B01J20/08;B01J2/08;B01J21/04;C01F7/02;C04B14/30;(IPC1-7):C01F7/02
主分类号
B01J20/08
代理机构
代理人
主权项
地址
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