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发明名称
摘要
申请公布号
JPS6346943(U)
申请公布日期
1988.03.30
申请号
JP19860139685U
申请日期
1986.09.11
申请人
发明人
分类号
B02C18/02;B02C18/00;(IPC1-7):B02C18/02;B02C18/40
主分类号
B02C18/02
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代理人
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