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发明名称
Improved method and apparatus for the extrusion of three layer film and sheet
摘要
申请公布号
GB1147895(A)
申请公布日期
1969.04.10
申请号
GB19660033784
申请日期
1966.07.27
申请人
THE DOW CHEMICAL COMPANY
发明人
HAROLD JACK DONALD
分类号
B29B7/00;B29C47/00;B29C47/06;B29C47/14;B29C47/56
主分类号
B29B7/00
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代理人
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