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发明名称
Ball mill
摘要
申请公布号
US1879479(A)
申请公布日期
1932.09.27
申请号
US19300481460
申请日期
1930.09.12
申请人
NATIONAL ANILINE & CHEMICAL COMPANY
发明人
PUNNETT ELLIS L.
分类号
B01J6/00
主分类号
B01J6/00
代理机构
代理人
主权项
地址
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