Astronomical spectrographs; Calorimeters; Digital signage display panels; Educational apparatus, namely, blocks used as teaching aids for modeling chemical compounds, visualization of math concepts; Electronic detectors for observing and measuring the infrared spectrum, namely, infrared detectors; Electronic instruments, namely, logic analyzers; Electronic regulating and control devices for the operation of light emitting diodes; Fiber optic connectors; Frequency meters; High-frequency switching power supplies; Integrated circuits; Optoelectronic measuring devices for creating touch or gesture-sensitive surfaces that interact with computer and other technology systems; Photometers; Precision instruments for manipulation and positioning of microscopic objects; Pressure indicators; Pressure measuring apparatus; Printed circuit boards; Printed circuits; Protractors; Pyrometers; Semi-conductors; Semiconductor chips; Silicon wafers; Surveying instruments; Temperature indicators; Tool measuring instruments; Optical fibres