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经营范围
发明名称
Felted products and processes containing fibrous boehmite
摘要
申请公布号
US2917426(A)
申请公布日期
1959.12.15
申请号
US19580763428
申请日期
1958.09.26
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
BUGOSH JOHN
分类号
主分类号
代理机构
代理人
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