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发明名称
Metal-extruding apparatus
摘要
申请公布号
US1768866(A)
申请公布日期
1930.07.01
申请号
US19280255644
申请日期
1928.02.20
申请人
SUMMEY DAVID L
发明人
SUMMEY DAVID L.
分类号
B21C31/00
主分类号
B21C31/00
代理机构
代理人
主权项
地址
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