US Patent 9381980B1,Richard Stockton Rush, III,「Systems and methods for launching and retrieving objects in aquatic environments; platforms for aquatic launch and retrieval」,发表于July 5, 2016互联网档案馆的存檔,存档日期June 24, 2023,.
US Patent 9381980B1,Richard Stockton Rush, III,「Systems and methods for launching and retrieving objects in aquatic environments; platforms for aquatic launch and retrieval」,发表于July 5, 2016互联网档案馆的存檔,存档日期June 24, 2023,.