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发明名称
摘要
申请公布号
JPS53113490(U)
申请公布日期
1978.09.09
申请号
JP19770019359U
申请日期
1977.02.18
申请人
发明人
分类号
B24B3/36;B24B3/54;(IPC1-7):B24B3/54
主分类号
B24B3/36
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