Circulators in the nature of electronic components; Electronic circuits, namely, flip-flops; Electronic components, namely, piezoelectric switches; Heat sinks for use in electronic components; Transistors; Electric diodes; Electric and electronic circuits; Electronic inductors; Electronic data relays for sensors; Printed circuit boards (PCBs); Pressure sensors; Power switches; Integrated circuit modules; Electric capacitors; Electric buzzers; Integrated circuits; Electric resistors; Rectifier...