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
CA900929A
Inventor
G. F. J. Naredi Robert
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.)
Cementa AB
Skega AB
Original Assignee
Cementa AB
Skega AB
Publication date
Application grantedgrantedCritical
Publication of CA900929ApublicationCriticalpatent/CA900929A/en