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
Priority claimed from FR7931768Aexternal-prioritypatent/FR2472802A1/en
Priority claimed from FR8011130Aexternal-prioritypatent/FR2482754A2/en
Application filed by Henri RosesfiledCriticalHenri Roses
Priority claimed from EP19800401872external-prioritypatent/EP0035621B1/en
Application grantedgrantedCritical
Publication of ATE2101T1publicationCriticalpatent/ATE2101T1/en