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
Priority claimed from DE3306053Aexternal-prioritypatent/DE3306053C2/en
Application filed by Tetra Pak DevfiledCriticalTetra Pak Dev
Priority claimed from EP83108558Aexternal-prioritypatent/EP0102616B1/en
Application grantedgrantedCritical
Publication of ATE20447T1publicationCriticalpatent/ATE20447T1/en
AT83108558T1982-09-071983-08-31
METHOD OF MAKING A PIECE OF TUBE FROM A FLAT WEB OF FLEXIBLE MATERIAL AND APPARATUS FOR CARRYING OUT THE METHOD.
ATE20447T1
(en)