3D scanners; 3D spectacles; Acceleration sensors; Accelerometers; Accounting machines; Air analysis apparatus; Air traffic control radio equipment; Alarm central units; Alarm monitoring systems; Amplifiers; Angle gauges; Angle viewfinder; Answering machines; Antenna filters; Antennas for wireless communications apparatus; Anti-glare glasses; Anti-glare spectacles; Anti-intrusion alarms; Anti-reflective lenses; Anticathodes; Antireflection coated eyeglasses; Apparatus for analysing gases; Appa...