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发明名称
PERFORATED TUBE, APPARATUS AND METHOD FOR MAKING THE SAME
摘要
申请公布号
KR101172220(B1)
申请公布日期
2012.08.07
申请号
KR20110050958
申请日期
2011.05.27
申请人
发明人
分类号
E02B11/00;F16L9/12;A01G25/02;E03F1/00;E03F3/04;F16L9/06;F16L9/16
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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