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发明名称
摘要
申请公布号
JPS5020374(A)
申请公布日期
1975.03.04
申请号
JP19730071022
申请日期
1973.06.23
申请人
发明人
分类号
B24B19/09;B23Q27/00
主分类号
B24B19/09
代理机构
代理人
主权项
地址
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