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经营范围
发明名称
Improvements in punching or drifting machines
摘要
申请公布号
GB383813(A)
申请公布日期
1932.11.24
申请号
GB19320003821
申请日期
1932.02.09
申请人
WILLIAM WARREN TRIGGS
发明人
分类号
B21K5/06
主分类号
B21K5/06
代理机构
代理人
主权项
地址
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