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发明名称
SAFETY VALVE OF HYDRAULIC BREAKER
摘要
申请公布号
KR100490592(B1)
申请公布日期
2005.05.11
申请号
KR20040050665
申请日期
2004.06.30
申请人
KIM, TAE SOON
发明人
KIM, TAE SOON
分类号
E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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