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经营范围
发明名称
Process of rolling sheets
摘要
申请公布号
US1852271(A)
申请公布日期
1932.04.05
申请号
US19300429297
申请日期
1930.02.18
申请人
THE AMERICAN ROLLING MILL COMPANY
发明人
SMITH RUSSELL R.;SONGER WILLIAM F.;SALENDER LAMBERT A.
分类号
B21B39/04
主分类号
B21B39/04
代理机构
代理人
主权项
地址
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