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发明名称
摘要
申请公布号
JPH0680540(U)
申请公布日期
1994.11.15
申请号
JP19930020326U
申请日期
1993.04.20
申请人
发明人
分类号
B24D7/16;B24B9/00;B24D7/18;(IPC1-7):B24B9/00
主分类号
B24D7/16
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