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经营范围
发明名称
Manufacture of tapered filaments
摘要
申请公布号
US2418492(A)
申请公布日期
1947.04.08
申请号
US19430485024
申请日期
1943.04.29
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
ALFTHAN JOHANNES;FIELDS REUBEN T.
分类号
D01D5/20;H04B1/08
主分类号
D01D5/20
代理机构
代理人
主权项
地址
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