15 : 1956 establishments in Florida|1995 disestablishments in Florida|Largo, Florida|Buildings and structures in Pinellas County, Florida|Industrial buildings and structures in Florida|Buildings and structures completed in 1956|Companies based in Pinellas County, Florida|Manufacturing companies based in Florida|Manufacturing companies established in 1956|Manufacturing companies disestablished in 1995|General Electric|Lockheed Martin|Superfund sites in Florida|United States Atomic Energy Commission|United States Department of Energy