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发明名称
Method of reducing materials
摘要
申请公布号
US2824700(A)
申请公布日期
1958.02.25
申请号
US19540432200
申请日期
1954.05.25
申请人
DAVID WESTON
发明人
WESTON DAVID
分类号
B02C25/00
主分类号
B02C25/00
代理机构
代理人
主权项
地址
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