73269609
Jul 10, 1980
Jan 26, 1982
Recessed Electrical Lighting Fixture System and Parts Therefor-Namely, Support Members, Reflectors, Ballasts, Starters, Lenses, Lens Support Brackets, End Plates, Lamps, Fuses, Wire, Bridging Tees, Channel Members, Raceways, Sockets, Socket Holders and Center Cross Plates
Environmental Control Apparatus