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US20130141255 Visual Aid For Landing Helicopters  
A visual aid for landing helicopters includes a plurality of weighted bases and a plurality of lights designed such that they can identify a helicopter landing zone during nighttime or during the...
US20080204280 Methods and systems for airport runway lighting and communications  
Systems and methods according to the exemplary embodiments provide techniques for illuminating airport travel paths, e.g., runways, taxiways, ground vehicle access paths, etc., and to use the...
Matches 1 - 2 out of 2