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发明名称
BLASTING APPARATUS
摘要
申请公布号
US3548957(A)
申请公布日期
1970.12.22
申请号
USD3548957
申请日期
1968.06.26
申请人
MIRON ABRAMOVICH SCHEGOLEVSKY
发明人
MIRON ABRAMOVICH SCHEGOLEVSKY
分类号
E21C37/16;(IPC1-7):E21C37/12
主分类号
E21C37/16
代理机构
代理人
主权项
地址
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