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发明名称
摘要
申请公布号
JPS53115153(U)
申请公布日期
1978.09.13
申请号
JP19770020907U
申请日期
1977.02.23
申请人
发明人
分类号
C01B13/11;(IPC1-7):C01B13/11
主分类号
C01B13/11
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