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发明名称
Die fixture
摘要
申请公布号
US2256247(A)
申请公布日期
1941.09.16
申请号
US19400353872
申请日期
1940.08.23
申请人
GROEHN HARVEY G
发明人
GROEHN HARVEY G.
分类号
B21D37/10;B22C9/06
主分类号
B21D37/10
代理机构
代理人
主权项
地址
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