3D spectacles; abacuses; accelerometers; accumulators, electric; accumulators, electric, for vehicles; acid hydrometers; acidimeters for batteries; acoustic alarms; acoustic conduits; acoustic couplers; actinometers; adding machines; aerometers; air analysis apparatus; alarm bells, electric; sound alarms, smoke alarms, gas alarms, security and fire alarms, anti-intrusion alarms; infant movement alarms, electronic door alarms, burglar alarms except for burglar alarms for motor vehicles; alcoho...