4. Aeronautics and astronautics
  5. Aircraft, heavier-than-air
  6. Airplane and helicopter sustained

David A Cylinder

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Convertible aerial vehicle with contra-rotating wing/rotors...

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and helicopter sustained
Reexamination Certificate

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Method for stacking thermal actuators with liquid crystal...

Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Thermal excitation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3280269

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