9 Scientific, research, surveying, optical, weighing, measuring, signaling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments, namely, apparatus and instruments for accumulating, storing, and generating electricity, electrical and electronic components, alarms and warning equipment, devices for measuring, detecting, monitoring, and controlling electricity and gas in the nature of data processing apparatus, gas and liquid detectors for detecting the presence of gas and liquid, heat regulating apparatus, namely, thermostats, inverters, pressure measuring apparatus, electric regulating apparatus for regulating or controlling the distribution or use of electric current, electric installations for the remote control of industrial operations, solar panels for the production of electricity, gas and liquid flow measuring apparatus and instruments, gas quantity measuring apparatus and instruments, heat energy measuring apparatus and instruments, electricity energy measuring apparatus and instruments, water quantity and quality measuring apparatus and instruments; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity, namely, apparatus and instruments for accumulating, storing, and generating electricity, electrical and electronic components, alarms and warning equipment, devices for measuring, detecting, monitoring, and controlling electricity and gas in the nature of data processing apparatus, gas and liquid detectors for detecting the presence of gas and liquid, heat regulating apparatus, namely, thermostats, inverters, pressure measuring apparatus, electric regulating apparatus for regulating or controlling the distribution or use of electric current, electric installations for the remote control of industrial operations, solar panels for the production of electricity, gas and liquid flow measuring apparatus and instruments, gas quantity measuring apparatus and instruments, heat energy measuring apparatus and instruments, electricity energy measuring apparatus and instruments, water quantity and quality measuring apparatus and instruments; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; downloadable and recorded computer software for testing devices for measuring, detecting, monitoring, and controlling electricity, gas, and liquid featuring measurement of specific quantities, parameters, levels, leaks, alarms and warnings; blank digital storage media; blank analog recording and storage media, namely, blank audio cassettes; mechanisms for coinoperated apparatus; cash registers, calculating machines; computers and computer peripheral devices; diving suits, diving masks, earplugs for diving, nose clips for divers and swimmers, diving gloves, breathing apparatus for underwater swimming; fire extinguishers