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
CA772198A
Inventor
E. Sjogreen Carl-Axel
G.M. Flodin Per
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.)
Skanska Attikfabriken AB
Original Assignee
Skanska Attikfabriken AB
Publication date
Application grantedgrantedCritical
Publication of CA772198ApublicationCriticalpatent/CA772198A/en