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
CA737585A
Inventor
Gertsch Georges-Albert
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.)
M I C A F I L AG
Original Assignee
M I C A F I L AG
Publication date
Application grantedgrantedCritical
Publication of CA737585ApublicationCriticalpatent/CA737585A/en