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发明名称
Device to replace rolls and apparatus on rolling stands having rolls supported at one end
摘要
申请公布号
US4949568(A)
申请公布日期
1990.08.21
申请号
US19880262981
申请日期
1988.10.26
申请人
POLONI, ALFREDO
发明人
POLONI, ALFREDO
分类号
B21B31/08
主分类号
B21B31/08
代理机构
代理人
主权项
地址
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