printed circuits; regulating apparatus, electric; monitoring apparatus, other than for medical purposes; converters, electric; correcting lenses [optics]; objectives [lenses] [optics]; measuring devices, electric; cables, electric; connections for electric lines; testing apparatus not for medical purposes; high-frequency apparatus; data processing apparatus; optical lenses; magnifying glasses [optics]; optical apparatus and instruments; prisms [optics]; computer programs, downloadable; integr...