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经营范围
发明名称
Improved tubular film preparation using an internal shaping and cooling member having a mat surface
摘要
申请公布号
GB982995(A)
申请公布日期
1965.02.10
申请号
GB19610025348
申请日期
1961.07.13
申请人
DU PONT OF CANADA LIMITED
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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