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发明名称
THE HIGHEST ROD STRUCTURE FOR PROVIDING WATER AND AIR SEPERATED
摘要
申请公布号
KR20110108908(A)
申请公布日期
2011.10.06
申请号
KR20100028386
申请日期
2010.03.30
申请人
HYO CHANG ENGINEERING CO., LTD.
发明人
KIM, YONG KI;SHIN, SANG HUN;PARK, TAE GYOO;KIM, WOONG KYU
分类号
E21B17/18;E21B1/30;E21B10/38
主分类号
E21B17/18
代理机构
代理人
主权项
地址
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