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经营范围
发明名称
Improvements in or relating to extruded hollow, elongated shapes of solid polyethylene
摘要
申请公布号
GB819396(A)
申请公布日期
1959.09.02
申请号
GB19570013782
申请日期
1957.04.30
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
B29C47/00
主分类号
B29C47/00
代理机构
代理人
主权项
地址
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