Pottery filters, namely, ceramic filter connectors for electronic circuits, namely, ceramic filters for radio interference suppression, to filter noise, resist to commons mode interference and shield electromagnetism interference in order to keep the signal transmission stable; filters for radio interference suppression; antenna filters; duplexers; aerial combiners; amplifiers; power amplifiers; pre-amplifiers; carrier equipment, namely, power line carrier; computer network hubs, switches and...

Magnetic encoders; disk drives for computers; surveying apparatus and instruments; optical apparatus and instruments, namely, optical inspection apparatus, optical fiber cables, optical lenses; junction sleeves for electric cables; coaxial cables; transducer, namely, electroacoustic transducers, electrical transducer, electro-optic transducers; electric installations for the remote control of industrial operations