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
CA783858A
Inventor
Frohlich Alfons
Hochlehnert Franz
Glaser Georg
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.)
Opti Holding AG
Original Assignee
Opti Holding AG
Publication date
Application grantedgrantedCritical
Publication of CA783858ApublicationCriticalpatent/CA783858A/en