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Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Publication of FI35242ApublicationCriticalpatent/FI35242A/en
Sätt att montera odelade bottnar i cylindriska distillationskolonner, i vilkas innerväggar fästats ringformiga innerflänsar samt distillationskolonner med bottnar monterade på detta sätt