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This is the second addition to [[Patent FR-1910-424987]], which brevet was filed 1910-03-26, the first addition being [[Patent FR-1911-424987.15884]].
=== Sources ===
* [[Aéro-Manuel 1914|''Aéro-Manuel'', 1914]], Répertoire Sportif Technique et Commercial de l'Aéronautique
* Inventor location: [[département]] [[Seine]], France
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