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发明名称
Parallel motion roll crusher
摘要
申请公布号
US2579767(A)
申请公布日期
1951.12.25
申请号
US19490115379
申请日期
1949.09.13
申请人
THE JEFFREY MANUFACTURING COMPANY
发明人
STRAWN ORVAL R.
分类号
B02C4/32
主分类号
B02C4/32
代理机构
代理人
主权项
地址
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