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经营范围
发明名称
DRAWING OF MATERIALS THROUGH REDUCING DIES
摘要
申请公布号
US3526115(A)
申请公布日期
1970.09.01
申请号
USD3526115
申请日期
1967.09.28
申请人
BRITISH IRON & STEEL RESEARCH ASSOCIATION:THE
发明人
BRIAN M. ARMSTRONG;ANDREW MIDDLEMISS
分类号
B21C9/00;(IPC1-7):B21B45/02;B21C3/00
主分类号
B21C9/00
代理机构
代理人
主权项
地址
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