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经营范围
发明名称
Improvements relating to devices for winding yarn, thread, wire and similar strand materials
摘要
申请公布号
GB674218(A)
申请公布日期
1952.06.18
申请号
GB19500009102
申请日期
1950.04.13
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
B65H54/50
主分类号
B65H54/50
代理机构
代理人
主权项
地址
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