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.)
Expired
Application number
CA754097A
Inventor
E. W. Hansson Hans
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.)
Tetra Pak AB
Original Assignee
Hans E W Hansson
Tetra Pak AB
Publication date
Application grantedgrantedCritical
Publication of CA754097ApublicationCriticalpatent/CA754097A/en