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Aerostatic Propeller
Aerostatic Propeller (Original French term: Propulseur Aérostatique) is a concept developed by Axel Wappendorf 1)
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1)
Read: Guide des Cités (Le)
Aerostatic Propeller (Original French term: Propulseur Aérostatique) is a concept developed by Axel Wappendorf 1)