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经营范围
发明名称
Improvements in or relating to blasting detonators or the like
摘要
申请公布号
GB574166(A)
申请公布日期
1945.12.27
申请号
GB19410004599
申请日期
1941.04.07
申请人
E. I. DU PONT DE NEMOURS AND CO.
发明人
分类号
主分类号
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代理人
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