Air analysis apparatus; acoustic alarms; adding machines; alarm bells, electric; anti-theft warning apparatus; ammeters; amplifying tubes; analysis apparatus, other than for medical use; animated cartoons; antennas; anti-interference devices for electricity; apparatus and installations for the production of X-rays, not for medical purposes; apparatus and instruments for physics; audio - and video-receivers; automatic indicators of low pressure in vehicle tyres; barcode readers; chemistry appa...