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发明名称
Reducing machine
摘要
申请公布号
US2045687(A)
申请公布日期
1936.06.30
申请号
US19310524388
申请日期
1931.03.21
申请人
THE JEFFREY MANUFACTURING COMPANY
发明人
ARMSTRONG WALTER J.
分类号
B02C4/26
主分类号
B02C4/26
代理机构
代理人
主权项
地址
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