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发明名称
摘要
申请公布号
JPS6390441(U)
申请公布日期
1988.06.11
申请号
JP19860186014U
申请日期
1986.12.02
申请人
发明人
分类号
B02C18/06;B02C18/22;(IPC1-7):B02C18/06
主分类号
B02C18/06
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