Acoustic conduits; Acoustic couplers; Acoustic sound alarms; Adding machines; Amplifiers; Answering machines; Antennas;Audiovisual receivers; Batteries; Battery chargers; Blueprinting machines; Bullet-proof vests; Bullet-proof vests and clothing; Cables, electric; Calculating scales; Calculators; Cameras; Cases for spectacles and sunglasses; Cases for spectacles, for pince-nez and for contact lenses; Cash registers; Cell phone straps;Central processing unit (CPU) clocks; Central processing un...