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经营范围
发明名称
TUBE ROLLING MILL
摘要
申请公布号
US3740988(A)
申请公布日期
1973.06.26
申请号
USD3740988
申请日期
1971.09.10
申请人
SA VALLOURE USINES A TUBES DE LORRAINE ESCAUT ET VALLOUREC REUNIES,F
发明人
PEYTAVIN P,FR
分类号
B21B21/00;B21B39/16;(IPC1-7):B21B21/04
主分类号
B21B21/00
代理机构
代理人
主权项
地址
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