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经营范围
发明名称
Improvements in boring or internal forming tools
摘要
申请公布号
GB550007(A)
申请公布日期
1942.12.17
申请号
GB19410010000
申请日期
1941.08.06
申请人
THE NATIONAL ACME COMPANY
发明人
分类号
B23B29/034
主分类号
B23B29/034
代理机构
代理人
主权项
地址
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