Cinematographic machines and apparatus; Photographic machines and apparatus, namely, cameras; Measuring or testing machines and instruments, namely, vector scope; Power distribution or control machines and apparatus, namely, electrical power distribution units, power distributing boxes; electrical cells and batteries; Electric wires and cables; Electronic machines, apparatus and their parts, namely, electron control systems for machines; Commercial, Industrial, and Professional Audio, Sound, Communications and Related Electronic Equipment Used in Sound Reinforcement, Broadcasting, Recording, Reproducing, Audio Processing, Sound Shaping and Control, Public Address, Intercommunications, and Paging Systems Namely, Audio Operational Amplifiers; Electronic switchers for audio and video signals; Audio processing equipments, namely, Preamplifiers, Amplifiers, Limiters, Compressors, audio Mixers, Distribution Amplifiers; Power Supplies; Audio and video signal filters for image signal processing, audio signal processing, sound signal processing; Transformers; Electronic Tone Sensors; Remote Controlled Attenuators; Extender Cards; Mounting racks for photographic equipment; Panel Mounted Modular Components, Namely, Audio Attenuators, audio Faders, sound Equalizers, audio processing equipment in the nature of Compressors, Automatic Attenuators, Amplifiers, Power Supplies; Rack Mounted Equipment, Namely, Automatic electronic controllers for controlling sound level, Distribution Amplifiers, audio processing equipment in the nature of Compressors and Limiters, Reverberation Generators, namely, reverberation units; Communications headsets for use with intercom systems; Portable and Fixed Mounting components, Namely, Private Line Amplifier; Electronic Circuit Cards; Intercoms for telephone communications; Mixing Consoles in the nature of electronic sound mixing apparatus; Lighting Control Panels; Complete Assemblies in the nature of electronic sound mixing apparatus; Video monitors, Voice display monitors, Television monitors, Computer monitors; Teleprompters; Optical transmission systems comprised of optical and electronic hardware and computer software for the transmission of data between two points; Optical transmission systems comprised of cameras and camera adapters for the transmission of data between two points; Lights for use with video cameras; Camera hoods; power adapters for cameras; Camera cases