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发明名称
Improvements connected with the making of clinch nuts or rivet bushes
摘要
申请公布号
GB572072(A)
申请公布日期
1945.09.21
申请号
GB19440003719
申请日期
1944.02.29
申请人
CYRIL LORENZO FIELD
发明人
分类号
B21K1/70
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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