01	Electrical and Electronic Equipment	Electrical and electronic components, systems and subsystems, such as electric motors, electron tubes, semiconductor devices, integrated circuits, electric switches, electric connectors, electric amplifiers and antennas where the application is not apparent or where there is more than one application. If the application is apparent, see the group where the application is treated.
02	Fluidics and Fluerics	Technology that uses the interaction of flowing gases or liquids to perform fluidic sensing, logic, amplification and control functions, employing devices which have no moving parts. For non-fluidic hydraulic and pneumatic equipment, See 13/07, Hydraulic and Pneumatic Equipment.
03	Lasers and Masers	Devices which amplify electromagnetic waves by stimulated emission of radiation. Includes irasers and uvasers. If the application of the laser or maser is apparent, see the group where the application is treated. See also 14/01, Holography. For laser countermeasures, See 17/04/04, Optical Countermeasures.
04	Line, Surface and Bulk Acoustic Wave Devices	Devices such as filters, resonators and oscillators, which employ acoustic waves which propagate along a line or a surface or through the bulk of piezoelectric material to process signals.
05	Electrooptical and Optoelectronic Devices	Includes display equipment, photosensitive diodes, phototubes, image tubes, cathode ray tubes, electroluminescent panels, light emitting diodes, light sensitive mosaics, and phototransistors where the application is not apparent or where there is more than one application. If the application of the device is apparent, see the group where the application is treated. For lasers, See 09/03, Lasers and Masers. For optical detection, See 17/05, Optical Detection and Detectors.
06	Acoustooptic and Optoacoustic Devices	Devices that deal with the interactions between acoustic waves and light where the application is not apparent or where there is more than one application. If the application is apparent, see the group where the application is treated.
07	Electromagnetic Shielding	Design, development and application of techniques which will allow operation of electronic equipment in the electromagnetic environment, including shielding from electromagnetic pulses, and which will also allow the prevention of the detection of spurious signals which might radiate from electronic equipment. For shielding to prevent interception of generated signals, See 17/04, Countermeasures, 17/04/01, Radio Countermeasures and 17/04/03, Radar Countermeasures.