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发明名称
摘要
申请公布号
JPS52143375(U)
申请公布日期
1977.10.29
申请号
JP19760051997U
申请日期
1976.04.24
申请人
发明人
分类号
B02B3/06;B02B7/02;(IPC1-7):B02B3/06
主分类号
B02B3/06
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