Matches in DBpedia 2016-04 for { ?s ?p "The Ardois light system, or the Ardois Telephotos light system, was a communications system and method used by the U.S. Navy in the late 19th century to enable ship to ship communications at night.Each installation used a series of eight double lamps (four red and four white) hung vertically from a mast and read from top to bottom, (if mounted horizontally, they were read from the transmitter's right to the left)."@en }
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- Ardois_Light_System comment "The Ardois light system, or the Ardois Telephotos light system, was a communications system and method used by the U.S. Navy in the late 19th century to enable ship to ship communications at night.Each installation used a series of eight double lamps (four red and four white) hung vertically from a mast and read from top to bottom, (if mounted horizontally, they were read from the transmitter's right to the left).".
- Q4788227 comment "The Ardois light system, or the Ardois Telephotos light system, was a communications system and method used by the U.S. Navy in the late 19th century to enable ship to ship communications at night.Each installation used a series of eight double lamps (four red and four white) hung vertically from a mast and read from top to bottom, (if mounted horizontally, they were read from the transmitter's right to the left).".