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.)
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.)
Lissac Opticiens SA Freres
Original Assignee
Lissac Opticiens SA Freres
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lissac Opticiens SA FreresfiledCriticalLissac Opticiens SA Freres
Priority to FR7717339ApriorityCriticalpatent/FR2371698A1/fr
Publication of FR2371698A1publicationCriticalpatent/FR2371698A1/fr
Application grantedgrantedCritical
Publication of FR2371698B1publicationCriticalpatent/FR2371698B1/fr