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发明名称
摘要
申请公布号
JPS57100452(U)
申请公布日期
1982.06.21
申请号
JP19800176308U
申请日期
1980.12.08
申请人
发明人
分类号
B24B45/00;B24D7/00;B24D7/04;B24D7/16;(IPC1-7):B24B45/00
主分类号
B24B45/00
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