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发明名称
EXTRUSION PRESS FOR EXTRUDING TUBES OF VARYING WALL THICKNESS ALONG THE LENGTH OF THE TUBE
摘要
申请公布号
CA546827(A)
申请公布日期
1957.10.01
申请号
CAD546827
申请日期
申请人
COMPAGNIE GENERALE DU DURALUMIN AND DU CUIVRE
发明人
PIERRE E. PETREQUIN
分类号
主分类号
代理机构
代理人
主权项
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