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发明名称
Thread tensioner
摘要
申请公布号
US2860844(A)
申请公布日期
1958.11.18
申请号
US19550543047
申请日期
1955.10.27
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
PRICE CECIL J.
分类号
B65H59/22
主分类号
B65H59/22
代理机构
代理人
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地址
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