JONHON

Optical apparatus and instruments, namely, electronic optical transmitters; electric cell change-over switches for telecommunications apparatus; 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; electric connectors; electric contacts of precious metal; electric switches; connections for electrical lines; electric connections; electric wire connectors; electric junction boxes; electric contacts; electric connections, namely, plugs, sockets and other contacts