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经营范围
发明名称
Method of progressively perforating a sheet of metal
摘要
申请公布号
US2414567(A)
申请公布日期
1947.01.21
申请号
US19420433971
申请日期
1942.03.09
申请人
THE FULTON COMPANY
发明人
THORP JOEL R.
分类号
B21D35/00
主分类号
B21D35/00
代理机构
代理人
主权项
地址
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