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.)
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.)
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Priority to FR837169ApriorityCriticalpatent/FR458M/fr
Application grantedgrantedCritical
Publication of FR458MpublicationCriticalpatent/FR458M/fr
Priority claimed from FR84818Aexternal-prioritypatent/FR1508331A/fr
