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发明名称
Art of extruding cold materials
摘要
申请公布号
US1819254(A)
申请公布日期
1931.08.18
申请号
US19240703060
申请日期
1924.03.31
申请人
MANTLE JOSEPH G C
发明人
MANTLE JOSEPH G. C.
分类号
B21C23/10
主分类号
B21C23/10
代理机构
代理人
主权项
地址
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