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发明名称
摘要
申请公布号
JPS4824473(B1)
申请公布日期
1973.07.21
申请号
JP19690077417
申请日期
1969.09.30
申请人
发明人
分类号
B24B27/033;B23Q35/00;B23Q35/10;B24B17/08
主分类号
B24B27/033
代理机构
代理人
主权项
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