4. Aeronautics and astronautics
  5. Aircraft, heavier-than-air
  6. Helicopter or auto-rotating wing sustained, i.e., gyroplanes

François Toulmay

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Method and a device for measuring the speed of an aircraft,...

Measuring and testing – Fluid flow direction – Relative to aircraft or watercraft
Reexamination Certificate

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Rotary wing aircraft with electric pitch control

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2562527

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