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RU TGERSWERKE AG
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RU TGERSWERKE AG
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C07C7/00—Purification; Separation; Use of additives
C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
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FR1047653D1949-08-041950-03-06Perfectionnements apportés aux procédés pour l'extraction du naphtalène hors desfractions de distillation du goudron
ExpiredFR1047653A
(fr)