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发明名称
摘要
申请公布号
JPH0341822(U)
申请公布日期
1991.04.22
申请号
JP19890099839U
申请日期
1989.08.29
申请人
发明人
分类号
C03B23/031;(IPC1-7):C03B23/031
主分类号
C03B23/031
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代理人
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