9 ELECTRIC APPARATUS FOR ELECTRIC WIRING INSTALLATIONS, NAMELY SWITCHES, DEVIATORS, COMMUTATORS, ELECTRIC PLUGS AND SOCKETS, CARTRIDGES AND WIRE TYPE FUSES, FUSE HOLDERS, ELECTRIC BELLS IN GENERAL, BELLS OF TWO OR MORE TONES, CIRCUIT BREAKERS, AIR AND OIL BATH ISOLATORS, LOW AND MEDIUM POWERSWITCHES, MERCURY SWITCHES, SOLID STATE SWITCHES, MOTOR STARTERS, REMOTE MOTOR STARTERS, ELECTRIC PANELBOARDS FOR WORKING SITES, DISTRIBUTION BOARDS, COMMAND AND CONTROL BOARDS WHETHER COMBINABLE OR NOT, CONTROL DESKS, COMBINABLE CONTROL DESKS, GANGED TERMINAL BLOCKS, DERIVATION BOXES WITH TERMINALS, COMBINABLE TERMINAL BOARDS, FLY TERMINALS, PILOT AND WARNING LAMPS, SENSOR-ACTIVATED SIGNALLING AND WARNING BOARDS AND PANELS FOR DOMESTIC USE, APPARATUS FOR DETECTING ELECTRIC CURRENT LEAKAGE, PHASE TEST APPARATUS, APPARATUS FOR MEASURING ELECTRIC MAGNITUDES, SECURITY FUSE BEARERS WITH PLUGS AND SOCKETS, NOTIFICATION AND CONTROL APPARATUS, ELECTRONIC APPARATUS MOUNTABLE AS COMMON ELECTRIC WIRING DEVICES, NAMELY PHOTOELECTRIC RELAYS, THERMOSTATS, SUNSET SWITCHES, LEVEL SIGNALLERS, PRESSURE SIGNALLERS AND LIMIT SWITCHES, SIMPLE AND BI-STABLE RELAYS, TIMERS AND TIMER SWITCHES, ELECTRONIC FLASHES, DIMMERS, EARTH LEAKAGE CIRCUIT BREAKERS, THERMO-MAGNETIC AND EARTH LEAKAGE CIRCUIT BREAKERS, SMALL GANGED CIRCUIT BREAKERS WHICH MAY BE INSERTED IN WIRING DEVICE SUPPORTS, SMALL ELECTRIC TRANSFORMERS, REMOTE CONTROL SWITCHES, EMERGENCY RELAYS, RELAY PANELS OR BOARDS, PRINCIPAL AND AUXILIARY POSTS AND SHUNTS FOR VOICE TRANSMISSIONS, TABLE APPARATUS FOR GUARD POSTS IN HOSPITALS, HOTELS AND THE LIKE COMPRISING TELEPHONES, VIDEO CAMERAS AND VIDEO MONITORS, ELECTRIC DOOR SPEAKERS, TELEPHONES, ELECTRIC SIGNS, NAMELY ENTRANCE DIRECTORIES FOR BUILDINGS, AND ENTRANCE DIRECTORIES INCORPORATING VIDEO CAMERAS AND TELEPHONES FOR SURVEILLANCE AND SECURITY, PAGERS, LOUDSPEAKER INSTALLATIONS, SPEAKERS FOR TELEVISIONS, VIDEOPHONE INSTALLATIONS, CLOSED-CIRCUIT TELEVISION SETS FOR CIVIL AND INDUSTRIAL USE, DISTRIBUTION CHANNELS FOR HOSPITALS, MICRO-SWITCHES, LIMIT SWITCHES, ELECTRO-SAFETY VALVES, ELECTRONIC COMPONENTS, NAMELY, TRANSISTORS, RESISTORS, CAPACITORS AND PRINTED CIRCUITS