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
Application grantedgrantedCritical
Publication of FR641492ApublicationCriticalpatent/FR641492A/fr
Appareil à ceinture d'ailerons applicable à une machine aérienne pour faciliter le décollage, l'immobilisation en altitude et l'atterrissage