Deep-ultraviolet ray light-emitting diodes; light-emitting diodes (LEDs); semi-conductor elements; light source installations for research purposes, not for lighting; light source installations for laboratory use, not for lighting; laboratory apparatus and instruments; light source installations for evaluation purposes, not for lighting; measuring and testing machines and instruments

Deep-ultraviolet ray light-emitting diodes; light-emitting diodes (LEDs); semi-conductor memories; light source installations for research purposes, namely, portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes; light source installations for laboratory use, namely, portable detection and identification instruments using light sources and light detectors for detecting ...