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经营范围
发明名称
Preparation of finely divided metal powders
摘要
申请公布号
US2726950(A)
申请公布日期
1955.12.13
申请号
US19520278312
申请日期
1952.03.24
申请人
HORACE FREEMAN
发明人
FREEMAN HORACE
分类号
B22F9/20
主分类号
B22F9/20
代理机构
代理人
主权项
地址
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