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发明名称
METHOD FOR FORMING COUNTER-SUNK HOLE IN A BASE MATERIAL AND AN APPARATUS FOR CARRYING OUT THE SAME
摘要
申请公布号
GB1554666(A)
申请公布日期
1979.10.24
申请号
GB19760051655
申请日期
1976.12.10
申请人
NAKANISHI Y
发明人
分类号
B26F1/00;B21D22/02;B21D22/04;B21D28/24;B21D28/26;B21D28/34;(IPC1-7):B21D28/26;B21D28/04;B21D28/06
主分类号
B26F1/00
代理机构
代理人
主权项
地址
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