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发明名称
Yarn production
摘要
申请公布号
US2306401(A)
申请公布日期
1942.12.29
申请号
US19410413606
申请日期
1941.10.04
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
MILES JOHN BLANCHARD
分类号
B65H71/00
主分类号
B65H71/00
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