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发明名称
摘要
申请公布号
JPH03109653(U)
申请公布日期
1991.11.11
申请号
JP19900018389U
申请日期
1990.02.26
申请人
发明人
分类号
B02C15/04;(IPC1-7):B02C15/04
主分类号
B02C15/04
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代理人
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