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发明名称
Improvements in or relating to ground bolts
摘要
申请公布号
GB9520275(D0)
申请公布日期
1995.12.06
申请号
GB19950020275
申请日期
1995.10.04
申请人
RUMNEY, JOHN L;STABLES, RICHARD E
发明人
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主分类号
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