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经营范围
发明名称
REVERSE PERCUSSION DEVICE
摘要
申请公布号
EP0759116(A1)
申请公布日期
1997.02.26
申请号
EP19950920605
申请日期
1995.05.15
申请人
REEDRILL, INC.
发明人
CAMPBELL, PAUL
分类号
B25D9/00;B25D9/14;E21B1/02;E21B1/26;E21B31/107;(IPC1-7):E21B4/14
主分类号
B25D9/00
代理机构
代理人
主权项
地址
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