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经营范围
发明名称
YARN PROCESSING
摘要
申请公布号
US3447302(A)
申请公布日期
1969.06.03
申请号
USD3447302
申请日期
1959.01.30
申请人
E.I. DU PONT DE NEMOURS & CO.
发明人
FREDERICK C. FIELD JR.
分类号
D02G1/16;(IPC1-7):D02G3/04
主分类号
D02G1/16
代理机构
代理人
主权项
地址
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