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发明名称
Bead tray method and apparatus for yarn purification
摘要
申请公布号
US2726134(A)
申请公布日期
1955.12.06
申请号
US19490109642
申请日期
1949.08.11
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
JR. ELIJA MAXIE HICKS,
分类号
D01D10/04
主分类号
D01D10/04
代理机构
代理人
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