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发明名称
Improvements in and relating to extrusion presses for metal tubes or sheathings
摘要
申请公布号
GB346647(A)
申请公布日期
1931.04.16
申请号
GB19300029146
申请日期
1930.09.29
申请人
FELTEN & GUILLEAUME CARLSWERK ACTIENGESELLSCHAFT
发明人
分类号
B21C23/28
主分类号
B21C23/28
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