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发明名称
DIE FOR PUNCHING HOLES IN HOLLOW ARTICLES
摘要
申请公布号
SU644577(A2)
申请公布日期
1979.01.30
申请号
SU19772521868
申请日期
1977.08.31
申请人
SMIRNOV ALEKSEJ S,SU
发明人
SMIRNOV ALEKSEJ S,SU
分类号
B21D28/28;B21D45/04;B21D51/10;(IPC1-7):B21D28/28
主分类号
B21D28/28
代理机构
代理人
主权项
地址
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