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发明名称
摘要
申请公布号
JPS5790750(U)
申请公布日期
1982.06.04
申请号
JP19800169424U
申请日期
1980.11.25
申请人
发明人
分类号
B02C18/24;(IPC1-7):B02C18/24
主分类号
B02C18/24
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代理人
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地址
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