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发明名称
DRILLING & BOLTING TROLLEY
摘要
申请公布号
GB8516145(D0)
申请公布日期
1985.07.31
申请号
GB19850016145
申请日期
1985.06.26
申请人
ANDERSON STRATHCLYDE PLC
发明人
分类号
E21B7/02;E21D20/00;E21F13/06
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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