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.)
Filing date
Publication date
Application filedfiledCritical
Priority to FR916769ApriorityCriticalpatent/FR1354847A/fr
Priority to BE640502Dprioritypatent/BE640502A/xx
Application grantedgrantedCritical
Publication of FR1354847ApublicationCriticalpatent/FR1354847A/fr