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经营范围
发明名称
Improvements in explosive charges and methods of blasting
摘要
申请公布号
GB657763(A)
申请公布日期
1951.09.26
申请号
GB19480013978
申请日期
1948.05.24
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
F42B3/08;F42D1/00
主分类号
F42B3/08
代理机构
代理人
主权项
地址
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