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发明名称
摘要
申请公布号
GB1250133(A)
申请公布日期
1971.10.20
申请号
GBD1250133
申请日期
1970.04.16
申请人
发明人
分类号
B23Q5/26;B24B33/06;B24B33/10
主分类号
B23Q5/26
代理机构
代理人
主权项
地址
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