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发明名称
Grinding mill and fineness control system
摘要
申请公布号
US3369761(A)
申请公布日期
1968.02.20
申请号
US19660521719
申请日期
1966.01.19
申请人
JOHN W. HAND
发明人
HAND JOHN W.
分类号
B02C25/00
主分类号
B02C25/00
代理机构
代理人
主权项
地址
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