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发明名称
摘要
申请公布号
JPS4828522(A)
申请公布日期
1973.04.16
申请号
JP19710062347
申请日期
1971.08.18
申请人
发明人
分类号
C04B28/00;C04B38/00;(IPC1-7):C04B21/08
主分类号
C04B28/00
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代理人
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