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经营范围
发明名称
Improvement in delay action blasting detonators and the like
摘要
申请公布号
GB383650(A)
申请公布日期
1932.11.24
申请号
GB19310018276
申请日期
1931.06.24
申请人
HERCULES POWDER COMPANY
发明人
分类号
F42B3/16
主分类号
F42B3/16
代理机构
代理人
主权项
地址
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