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发明名称
Pack rolling
摘要
申请公布号
US2985945(A)
申请公布日期
1961.05.30
申请号
US19540410015
申请日期
1954.02.12
申请人
CRUCIBLE STEEL COMPANY OF AMERICA
发明人
NORDHEIM JAMES E.;FRONEK STEPHEN A.
分类号
B21B1/38
主分类号
B21B1/38
代理机构
代理人
主权项
地址
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