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发明名称
Improvements in propellent powders
摘要
申请公布号
GB356256(A)
申请公布日期
1931.09.07
申请号
GB19300017454
申请日期
1930.06.05
申请人
E. I. DU PONT DE NEMOURS AND CO.
发明人
分类号
C06B25/22
主分类号
C06B25/22
代理机构
代理人
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