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发明名称
DIE FOR PIERCING HOLES IN WALLS OF HOLLOW ARTICLES
摘要
申请公布号
SU1574323(A1)
申请公布日期
1990.06.30
申请号
SU19884416616
申请日期
1988.04.27
申请人
MELNIKOV EVGENIJ N,SU
发明人
MELNIKOV EVGENIJ N,SU
分类号
B21D28/28
主分类号
B21D28/28
代理机构
代理人
主权项
地址
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