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发明名称
摘要
申请公布号
JPS4915925(B1)
申请公布日期
1974.04.18
申请号
JP19700037537
申请日期
1970.05.04
申请人
发明人
分类号
C04B35/50;C01F17/00;C23C14/06;C23C14/08
主分类号
C04B35/50
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代理人
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