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发明名称
Die set
摘要
申请公布号
US2539085(A)
申请公布日期
1951.01.23
申请号
US19470771605
申请日期
1947.09.02
申请人
KERSEG KURT C
发明人
KERSEG KURT C.
分类号
B21D28/30
主分类号
B21D28/30
代理机构
代理人
主权项
地址
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