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发明名称
IMPROVEMENTS IN OR RELATING TO THE PLUG DRAWING OF TUBES AND OTHER HOLLOW ITEMS
摘要
申请公布号
EP0189294(A3)
申请公布日期
1989.02.15
申请号
EP19860300327
申请日期
1986.01.17
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
SANSOME, DENNIS HUGH;JONES, GERALD MAYNARD
分类号
B21C1/24;B21C3/16;B21C9/00;(IPC1-7):B21C1/24
主分类号
B21C1/24
代理机构
代理人
主权项
地址
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