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发明名称
Improvements in and relating to machines for de-airing plastic materials
摘要
申请公布号
GB620225(A)
申请公布日期
1949.03.22
申请号
GB19470000825
申请日期
1947.01.10
申请人
CHARLES LESLIE WILLIS
发明人
分类号
B28B3/22;B29C51/18
主分类号
B28B3/22
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代理人
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