Autogyro and suitable take-off and landing site for the same Grant DE-102021000102-B8 Germany 27 Oct 2022
Autogyro and suitable take-off and landing site for the same Grant DE-102021000102-B4 Germany 28 Jul 2022
Autogyro and suitable take-off and landing site for the same Application DE-102021000102-A1 Germany 14 Jul 2022