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.)
Suez International SAS
Original Assignee
Degremont SA
Degremont Societe Generale dEpuration de dAssainissement
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 Degremont SA, Degremont Societe Generale dEpuration de dAssainissementfiledCriticalDegremont SA
Priority to FR6904153ApriorityCriticalpatent/FR2032122A6/fr
Priority to BE741241Dprioritypatent/BE741241A/xx
Priority to DE19702007471prioritypatent/DE2007471A1/de
Application grantedgrantedCritical
Publication of FR2032122A6publicationCriticalpatent/FR2032122A6/fr
Procedimento ed apparecchio per lavare in controcorrente erigenepare selettivamente un materiale di filtro in un sistema di purifi cazione di liquidi a filtraggio caontinzo