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发明名称
Magnetic die
摘要
申请公布号
US1895401(A)
申请公布日期
1933.01.24
申请号
US19300473112
申请日期
1930.08.04
申请人
HUSTON
发明人
SIMONSEN IRVING PERCY;HUSTON ARCH C.
分类号
B21D22/02
主分类号
B21D22/02
代理机构
代理人
主权项
地址
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