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经营范围
发明名称
Improvement in propellent smokeless powders
摘要
申请公布号
GB579302(A)
申请公布日期
1946.07.30
申请号
GB19440009117
申请日期
1944.05.12
申请人
E. I. DU PONT DE NEMOURS & CO.
发明人
分类号
C06B45/28
主分类号
C06B45/28
代理机构
代理人
主权项
地址
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