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发明名称
PRODUCTION OF ARTIFICIAL FILAMENTS, THREADS OR RIBBONS
摘要
申请公布号
CA321720(A)
申请公布日期
1932.04.19
申请号
CAD321720
申请日期
申请人
HENRY DREYFUS
发明人
ROBERT PIERCE ROBERTS;LOUIS WILFRED GREGORY;REGINALD IVOR REID DEAN
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主分类号
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