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
CA788106A
Inventor
Fasani Angelo
Bonvallet Roger
Meyer Jean
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.)
Trench France SAS
Original Assignee
Emile Haefely SA
Publication date
Application grantedgrantedCritical
Publication of CA788106ApublicationCriticalpatent/CA788106A/en