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发明名称
摘要
申请公布号
JPS57184745(U)
申请公布日期
1982.11.24
申请号
JP19810072398U
申请日期
1981.05.18
申请人
发明人
分类号
B02B5/02;B02B7/02;(IPC1-7):B02B7/02
主分类号
B02B5/02
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