9 Apparatus and instruments for controlling electricity; Apparatus and instruments for accumulating electricity; Apparatus and instruments for switching electricity; Apparatus and instruments for transforming electricity; Apparatus and instruments for regulating electricity; Apparatus and instruments for conducting electricity; electronic circuit boards; flexible circuit boards; integrated circuit boards; printed circuit boards; testing apparatus for testing printed circuit boards; Apparatus and instruments for conveying, distributing, transforming, storing, regulating or controlling electric current; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Electronic proximity sensors and switches; Photographic apparatus and instruments for use in 3D imaging