ELECTRIC APPARATUS-NAMELY, TELECOMMUNICATING MACHINES, STORAGE BATTERIES AND CELLS, COILS, TRANSFORMERS, VARIABLE RESISTORS, TUNERS, CERAMIC FILTERS, DELAY LINES, SWITCHES, CONNECTORS, SOCKETS, RELAYS, SEMICONDUCTORS, INTEGRATED CIRCUITS, ELECTRIC MOTORS; AND ELECTRON TUBES SUCH AS VACUUM TUBES, [ RECTIFIER TUBES, BRAUN TUBES, ] DISCHARGE TUBES, X-RAY TUBES, AND PHOTOCELLS