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发明名称
Extrusion press
摘要
申请公布号
US2023879(A)
申请公布日期
1935.12.10
申请号
US19330650850
申请日期
1933.01.09
申请人
THE SUN TUBE CORPORATION
发明人
FRIDEN JOHN H.
分类号
B21C23/21
主分类号
B21C23/21
代理机构
代理人
主权项
地址
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