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发明名称
Rolling mill
摘要
申请公布号
US2056409(A)
申请公布日期
1936.10.06
申请号
US19330679608
申请日期
1933.07.10
申请人
ROSS WILLIAM G
发明人
ROSS WILLIAM G.
分类号
B21B31/32
主分类号
B21B31/32
代理机构
代理人
主权项
地址
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