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经营范围
发明名称
Improvements in or relating to bolt making machines
摘要
申请公布号
GB421325(A)
申请公布日期
1934.12.18
申请号
GB19340014022
申请日期
1934.05.09
申请人
THE NATIONAL MACHINERY COMPANY
发明人
分类号
B21J13/08
主分类号
B21J13/08
代理机构
代理人
主权项
地址
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