(1) More than two lines or two bands
(2) Oblique lines or bands
(3) One triangle
(4) Triangles with dark surfaces or parts of surfaces
(5) Triangles pointing downwards
(1) - Audio equipment, namely - radio receivers, tuners, amplifiers, tape recorders, headphones, speakers, microphones, record players, audio mixers, stylus, racks for audio equipment, graphic equalizers, audio timers, remote controllers for audio equipment, remote power switches, antennas, head shells, cassette cases, accessory cases, lamps for audio equipment, stands for speakers, cords and cables for audio equipment digital audio disc players and their discs, tapes and cassette tapes for tape recorders; digital encoders and decoders, solid state memory recorders, musical automata; video equipment, namely - video tape recorders, video disc players and their discs, television receivers, tapes and cassette tapes for video tape recorders, cameras for video tape recorders, dryers for protecting tapes from the humidity, video tape winders; measuring instruments, namely - oscilloscopes, resistance attenuators, pattern generators, frequency counters, oscillators, radio-frequency signal generators, sweep generators, function generators, volt meters, wow-flutter meters, acoustic measuring instruments, frequency checkers, probe selectors for oscilloscopes, power meters, dip meters, multi meters, regulated direct current power supplies, stereo signal generators, audio frequency generators, remote controllers for measuring instruments, probes for measuring instruments, tone burst generators, cartridge test systems, speaker test generators, audio sequencers, digital memory-scopes, logic analyzers; communication equipment, namely - transceivers, communications receivers, variable frequency oscillators, antenna tuners, frequency mobile controllers, direct current power supplies, direct current-direct current converters, power-up kits for transceivers, oscillator units for transceivers, fan units for transceivers, knobs for transceivers, mobile mounts for transceivers, frequency modulation units for transceivers, filters for transceivers, voice control units for transceivers, system bases for communication equipment, station consoles for communication equipment, stands for transceivers, batteries, battery chargers, cases for transceivers, tone units for transceivers, vacuum tubes, power supply cords, connecters, radio-frequency dummy loads, world clocks for amateur radio, racks for communication equipment; sattelite communication equipment, namely - receivers for sattelite communication, antenna for satellite communication, measuring instruments for satellite communication; computer equipment namely - computers, computer memories, recorded computer programs, computer interfaces; telephone and telegraph apparatus, namely - telegraphs, telemeters, telephone apparatus, telephone transmitters, telegraphic transmitters, telephone receivers, teleprinters, teletypewriters; alarms and electric alarm bells.