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Two Aerospace Engineers Work On Unmanned Aerial Vehicle / Drone Prototype. Aviation Scientists in (Stock Footage)

Two Aerospace Engineers Work On Unmanned Aerial Vehicle / Drone Prototype. Aviation Scientists in (Stock Footage)

Two Aerospace Engineers Work On Unmanned Aerial Vehicle / Drone Prototype. Aviation Scientists in White Coats Talking, Using Tablet Computer. Industrial Laboratory with Commercial Aerial Surveillance Aircraft

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