Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet AB
Original Assignee
Sunds Defibrator AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator ABfiledCriticalSunds Defibrator AB
Priority to CA000417382ApriorityCriticalpatent/CA1210979A/fr
Application grantedgrantedCritical
Publication of CA1210979ApublicationCriticalpatent/CA1210979A/fr
Procede et installation pour l'extraction en continu d'une substance tannique contenue dans une matiere ligneuse et pour la production d'une matiere lignocellulosique utilisable