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发明名称
BLASTING CAP MANUFACTURE
摘要
申请公布号
CA491350(A)
申请公布日期
1953.03.17
申请号
CAD491350
申请日期
申请人
HERCULES POWDER COMPANY
发明人
EDWARD KARL LEFREN
分类号
主分类号
代理机构
代理人
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