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发明名称
VORRICHTUNG ZUR AUTOMATISCHEN STEUERUNG DES RUECKLAUFVERHAELTNISSES BEI REKTIFIKATIONSKOLONNEN.
摘要
申请公布号
DE1703737(U)
申请公布日期
1955.07.28
申请号
DE195500N5394U
申请日期
1955.04.28
申请人
NORMSCHLIFF-GLASGERAETE G.M.B.H.
发明人
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主分类号
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