| 27900 | Appliance cords with insulated wire and connectors (manufacture) |
| 27900 | Backward wave oscillator (manufacture) |
| 27900 | Bell apparatus (other than telegraphic or telephonic) (manufacture) |
| 27900 | Bells (other than telephone type) (electric) (manufacture) |
| 27900 | Carbon brush (manufacture) |
| 27900 | Carbon or graphite electrodes (manufacture) |
| 27900 | Contacts and other electrical carbon and graphite products (manufacture) |
| 27900 | Cyclotron (manufacture) |
| 27900 | Detection apparatus (manufacture) |
| 27900 | Electric bells (manufacture) |
| 27900 | Electrical base metal conduit and fittings (manufacture) |
| 27900 | Electrical capacitors (manufacture) |
| 27900 | Electrical carbon (manufacture) |
| 27900 | Electrical condensers and similar components (manufacture) |
| 27900 | Electrical conduit tubing, base metal (manufacture) |
| 27900 | Electrical door opening and closing devices (manufacture) |
| 27900 | Electrical insulators (except glass or porcelain) (manufacture) |
| 27900 | Electrical pedestrian signalling equipment (manufacture) |
| 27900 | Electrical signs (manufacture) |
| 27900 | Electrical soldering equipment (manufacture) |
| 27900 | Electrical traffic lights (manufacture) |
| 27900 | Electrical welding equipment (manufacture) |
| 27900 | Electrodes for welding (manufacture) |
| 27900 | Electromagnets (manufacture) |
| 27900 | Electronic filter (manufacture) |
| 27900 | Electronic miscellaneous unspecified equipment (manufacture) |
| 27900 | Electronic scoreboards (manufacture) |
| 27900 | Extension cords made from purchased insulated wire (manufacture) |
| 27900 | Extension cords with insulated wire and connectors (manufacture) |
| 27900 | Indicator panel (manufacture) |
| 27900 | Particle accelerator (manufacture) |
| 27900 | Railway signalling equipment (electric) (manufacture) |
| 27900 | Rectifier, solid state (manufacture) |
| 27900 | Rectifying valve and tube (manufacture) |
| 27900 | Resistors including rheostats and potentiometers (manufacture) |
| 27900 | Signal generator (manufacture) |
| 27900 | Signalling equipment for road traffic (electric) (manufacture) |
| 27900 | Simulator (battle) (manufacture) |
| 27900 | Simulator (driving) (manufacture) |
| 27900 | Simulator (other training (except flying trainers)) (manufacture) |
| 27900 | Soldering irons (electrical, hand-held) (manufacture) |
| 27900 | Soldering machines (electric) (manufacture) |
| 27900 | Solid state battery chargers (manufacture) |
| 27900 | Solid state fuel cells (manufacture) |
| 27900 | Solid state inverters (manufacture) |
| 27900 | Surge suppressors (manufacture) |
| 27900 | Thyristor (manufacture) |
| 27900 | Ultrasonic cleaning machines (except laboratory and dental) (manufacture) |
| 27900 | Uninterruptible power supplies (UPS) (manufacture) |
| 27900 | Wave form generator (manufacture) |
| 27900 | Welding electrode (manufacture) |
| 27900 | Welding machines (electric) (manufacture) |
| 27900 | |