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经营范围
发明名称
Universal ring-rolling machine
摘要
申请公布号
US1781140(A)
申请公布日期
1930.11.11
申请号
US19230679573
申请日期
1923.12.10
申请人
HALL TAYLOR JAMES
发明人
TAYLOR JAMES HALL
分类号
B21H1/06
主分类号
B21H1/06
代理机构
代理人
主权项
地址
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