9 3D spectacles; Cameras; Microscopes; Radios; Scanners; Sonars; Air analysis apparatus; Bar code readers; Cabinets for loudspeakers; Distance measuring apparatus; Electronic book readers; Gas testing instruments; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Surveyors' levels; Video game cartridges