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经营范围
发明名称
BLASTING
摘要
申请公布号
GB2083526(B)
申请公布日期
1984.03.28
申请号
GB19810026539
申请日期
1981.09.02
申请人
AECI LTD
发明人
分类号
E21C37/06;F42D3/04;(IPC1-7):F42D3/00
主分类号
E21C37/06
代理机构
代理人
主权项
地址
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