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发明名称
Improvements in or relating to methods and apparatus for converting thermo-softeningmaterial to the cellular condition
摘要
申请公布号
GB648895(A)
申请公布日期
1951.01.17
申请号
GB19470023679
申请日期
1947.08.27
申请人
THE B. F. GOODRICH COMPANY
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