Beacons, luminous; Educational apparatus, namely, blocks used as teaching aids for modeling chemical compounds, visualization of math concepts; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Electronic integrated circuits; Printed circuit boards (PCBs); Radio receivers; Semiconductor devices; Speaker enclosures; Surveying machines and instruments; Time...