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
CA892267A
Inventor
Engel Jean-Pierre
Zurcher Erwin
Corbaz Andre
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.)
Edouard Dubied et Cie SA
Original Assignee
Edouard Dubied et Cie SA
Publication date
Application grantedgrantedCritical
Publication of CA892267ApublicationCriticalpatent/CA892267A/en