Non medical use scientific, nautical, measuring, signaling, checking and supervisory life-saving apparatus and instruments, namely, acoustic sound alarms; alarms, namely, burglar alarms, anti-intrusion alarms, fire alarms, smoke alarms, alarms for the detection of inflammable gases; satellite navigation apparatus; navigation apparatus for vehicles in the nature of on board computers; apparatus for recording, transmitting, reproducing and processing sound and images, namely, telecommunication ...