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经营范围
发明名称
Attrition mill
摘要
申请公布号
US2315084(A)
申请公布日期
1943.03.30
申请号
US19400356611
申请日期
1940.09.13
申请人
EAGLE PENCIL COMPANY
发明人
CHESLER ISIDOR
分类号
B02C19/06
主分类号
B02C19/06
代理机构
代理人
主权项
地址
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