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发明名称
Damper pressure control apparatus for hydraulic rock drill
摘要
申请公布号
EP1160416(B1)
申请公布日期
2005.08.17
申请号
EP20010112296
申请日期
2001.05.19
申请人
FURUKAWA CO., LTD.
发明人
KANEKO, TSUTOMU
分类号
B25D9/26;B25D17/24;B28D1/26;E21B1/00;E21B1/26;E21B44/00;(IPC1-7):E21B1/00
主分类号
B25D9/26
代理机构
代理人
主权项
地址
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