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经营范围
发明名称
Attrition mill
摘要
申请公布号
US2068071(A)
申请公布日期
1937.01.19
申请号
US19320616484
申请日期
1932.06.10
申请人
THE STRONG-SCOTT MFG. CO.
发明人
QUEHL RICHARD G.
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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