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发明名称
METAL ARTICLE DRAWING METHOD
摘要
申请公布号
SU663461(A1)
申请公布日期
1979.05.25
申请号
SU19772499650
申请日期
1977.06.17
申请人
GONCHAROV IVAN A,SU
发明人
GONCHAROV IVAN A,SU
分类号
B21C1/00;B21C19/00;(IPC1-7):B21C1/00
主分类号
B21C1/00
代理机构
代理人
主权项
地址
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