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经营范围
发明名称
SPINNERET CLEANING APPARATUS
摘要
申请公布号
US3436789(A)
申请公布日期
1969.04.08
申请号
USD3436789
申请日期
1966.10.06
申请人
E.I. DU PONT DE NEMOURS & CO.
发明人
RICHARD YOUNG HAYS
分类号
D01D4/04;(IPC1-7):A47L5/14;A47L5/00
主分类号
D01D4/04
代理机构
代理人
主权项
地址
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