Referenced by|
| US4201973 | Jul 21, 1978 | May 6, 1980 | Theodore Jackson | Airport landing indicator apparatus | | US4481505 | Jan 21, 1982 | Nov 6, 1984 | | Illuminated mast-top wind indicator | | US4812844 | Feb 13, 1987 | Mar 14, 1989 | | Windshear detection indicator system | | US8091420 | Mar 17, 2010 | Jan 10, 2012 | Saudi Arabian Oil Company | Illuminated directional wind speed indicator |
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