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发明名称
摘要
申请公布号
JPH0539854(U)
申请公布日期
1993.05.28
申请号
JP19910090250U
申请日期
1991.11.01
申请人
发明人
分类号
F16J15/32;B24B9/02;(IPC1-7):B24B9/02
主分类号
F16J15/32
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代理人
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