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发明名称
Punch for perforating sheet metal
摘要
申请公布号
US2214701(A)
申请公布日期
1940.09.10
申请号
US19400312214
申请日期
1940.01.03
申请人
EDWARD G. BUDD MANUFACTURING COMPANY
发明人
SCULL CHESTER
分类号
B21D28/34
主分类号
B21D28/34
代理机构
代理人
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地址
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