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Circuit breakers | |
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Battery charging/discharging circuits | |
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Emergency protective-circuit arrangemnets (single input protective relay) | |
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Push-button switches | |
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Slide switches | |
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Distribution board | |
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Trip switchboards | |
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Emergency protective circuit devices (without disconnection) | |
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Emergency protection circuit arrangements (current stop) | |
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Stand-by power supply arrangements | |
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Patch boards | |
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Gas-insulated switchgears | |
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Thermal switches (2) | |
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Rotary switches and piano key switches | |
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Timer switches | |
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Manufacture of switches | |
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Air circuit breakers | |
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Mechanisms for operating contacts | |
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High-tension arc-extinguishing switches without spraying means | |
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Arc-extinguishing devices that are switches | |
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Driving mechanisms and operating circuits of arc-extinguishing high-tension switches | |
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Electric thermal relays | |
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Breakers | |
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SWITCHES WITH COMPOUND OPERATIONS | |
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Relay manufacturing | |
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Selector switches | |
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Keying circuit devices | |
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Tumbler switches | |
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Electromagnetic relay components (current-carrying sections) | |
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Electromagnetic relays | |
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Pull switches | |
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Detachable switches | |
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Liquid contact switches | |
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Thermally actuated switches (1) | |
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Emergency protective circuit devices and details thereof | |
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Protection of transformers | |
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PROTECTION OF GENERATORS AND MOTORS | |
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Arresters | |
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SWITCHES THAT ARE OPERATED BY MAGNETIC OR ELECTRIC FIELDS | |
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Emergency protective circuit devices and carrier protection relays | |
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Central control supervisory desk | |
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Protection against nonelectric errors | |
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Contacts (1) | |
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Contacts (2) | |
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SWITCH CASES, INDICATION, AND LOCKING | |
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Protection of static devices | |
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Emergency protection circuit arrangements (bus lines and wiring) | |
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Switches operated by changes in physical conditions (i.e., photoelectric switches) | |
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Switches operated by changes in physical conditions (e.g., pressure switches) | |
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Relay circuits | |
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Emergency protective circuit devices (e.g., composite input protective relays) | |
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SPARK PLUGS | |
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Control of charge by means of generators | |
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Electric energy storage systems | |
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Power transmission and distribution systems through electromagnetic waves | |
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Remote monitoring and control of power-distribution networks | |
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DIRECT-CURRENT FEEDING AND DISTRIBUTION | |
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SUPPLY AND DISTRIBUTION OF ALTERNATING CURRENT | |
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Elimination of static electricity | |
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EMERGENCY PROTECTIVE CIRCUIT DEVICE (DETAIL) | |
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EMERGENCY PROTECTIVE DEVICE (TRANSFER PROTECTIVE RELAY) | |
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DIRECT CURRENT FEEDING AND DISTRIBUTION | |
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PUSH-BUTTON SWITCHES | |
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DISTRIBUTION BOARD | |
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ROTARY SWITCH, PIANO KEY SWITCH, AND LEVER SWITCH | |
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CONDUCTIVE MATERIALS | |
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Inorganic insulating materials | |
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Organic insulating materials | |
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NON-INSULATED CONDUCTORS | |
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INSULATED CONDUCTORS (1) | |
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Insulated conductors (2) | |
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Insulated conductors (3) | |
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Insulated conductors (4) | |
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Power cables | |
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Communication cables | |
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SUPERCONDUCTORS AND MANUFACTURING METHODS THEREFOR | |
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Manufacturing of electric cables | |
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Processes specially adapted for manufacturing cables | |
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Manufacturing of electric cables (3) | |
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Utilization of waste | |
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Insulators | |
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Insulating bodies | |
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Electric cable installation | |
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ELECTRIC CABLE INSTALLATION | |
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Removal of insulation or armoring from wires or cables | |
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Processing of terminals | |
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Details of indoor wiring | |
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Conduit tube coupling | |
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Connection or junction boxes | |
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INSTALLATION OF INDOOR WIRING | |
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Installation of bus-bars | |
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Suspension of electric lines or cables | |
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Laying of electric cables or lines outside | |
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ELECTRIC CABLE ARRANGEMENT BETWEEN RELATIVELY MOVING PARTS | |
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Arrester conductor installation | |
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Cable accessories | |
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Gas or oil filled cable accessories | |
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GAS OR OIL FILLED CABLE ACCESSORIES | |
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Power transmission and distribution to electric trains | |
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Fire alarms | |
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DEVICES FOR INDICATING VARIABLE INFORMATION BY COMBINING INDIVIDUAL ELEMENTS (1) | |
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Bulletin boards, banners, etc. | |
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Advertisements other than illuminations | |
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FUSES | |
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CHARGE AND DISCHARGE CIRCUITS FOR BATTERIES OR THE LIKE |