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经营范围
发明名称
Attrition mill
摘要
申请公布号
US1758539(A)
申请公布日期
1930.05.13
申请号
US19290351887
申请日期
1929.04.02
申请人
AUGUST SCHUCHARDT
发明人
SCHUCHARDT AUGUST
分类号
B02C7/06
主分类号
B02C7/06
代理机构
代理人
主权项
地址
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