project management computer software for use in the fields of architecture, engineering and construction

project management computer software for use in the fields of architecture, engineering and construction

project management computer software for use in the fields of architecture, engineering and construction

planetarium projection system comprised of optical elements, computer programs, computers, computer peripherals and projectors; audio/visual systems for use in planetarium theaters comprised of video disc recorders/players, video tape recorders/players, audio disc recorders/players, audio tape recorders/players, audio mixers, audio speakers, digital sound sources, audio processing control subsystem, amplifier and loudspeakers