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发明名称
Manufacture of brushes
摘要
申请公布号
US2298156(A)
申请公布日期
1942.10.06
申请号
US19400370029
申请日期
1940.12.13
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
PERSON EARL R.
分类号
A46B3/04;B29C45/14
主分类号
A46B3/04
代理机构
代理人
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