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发明名称
Apparatus for impact action
摘要
申请公布号
GB9611394(D0)
申请公布日期
1996.08.07
申请号
GB19960011394
申请日期
1996.05.31
申请人
INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK
发明人
分类号
E21B1/30;E21B4/14
主分类号
E21B1/30
代理机构
代理人
主权项
地址
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