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发明名称
摘要
申请公布号
JPS6239921(U)
申请公布日期
1987.03.10
申请号
JP19850129066U
申请日期
1985.08.24
申请人
发明人
分类号
B23F21/03;B23F21/02;(IPC1-7):B23F21/02
主分类号
B23F21/03
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