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发明名称
Perfectionnements aux appareils d'extrusion
摘要
申请公布号
FR1146742(A)
申请公布日期
1957.11.14
申请号
FRD1146742
申请日期
1956.02.01
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
B29C47/14
主分类号
B29C47/14
代理机构
代理人
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