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发明名称
Small charge blasting apparatus including device for sealing pressurised fluids in holes
摘要
申请公布号
AP200102278(D0)
申请公布日期
2001.09.30
申请号
AP20010002278
申请日期
2000.02.24
申请人
ROCKTEK LIMITED
发明人
分类号
E21C37/12;E21C37/14;F42D3/00
主分类号
E21C37/12
代理机构
代理人
主权项
地址
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