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发明名称
Production method of products empty inside
摘要
申请公布号
PL212062(B1)
申请公布日期
2012.08.31
申请号
PL20060380940
申请日期
2006.10.30
申请人
POLITECHNIKA CZ&EOGON,STOCHOWSKA
发明人
DEWIATOW WITALIJ;RAJCZYK JAROS&LSTROK,AW
分类号
B21D51/04;B21C37/06;B21D22/04
主分类号
B21D51/04
代理机构
代理人
主权项
地址
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