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发明名称
Attrition mill or disintegrator
摘要
申请公布号
US2293667(A)
申请公布日期
1942.08.18
申请号
US19400319797
申请日期
1940.02.19
申请人
SHANKEL TIMOTHY D
发明人
SHANKEL TIMOTHY D.
分类号
B02C9/00
主分类号
B02C9/00
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代理人
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