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发明名称
摘要
申请公布号
JPH0616892(Y2)
申请公布日期
1994.05.02
申请号
JP19900047928U
申请日期
1990.05.08
申请人
发明人
分类号
C01B13/11;(IPC1-7):C01B13/11
主分类号
C01B13/11
代理机构
代理人
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地址
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