9 Electrical adapters; accumulators, electric; sound recording apparatus; global positioning system (GPS) apparatus; sound transmitting apparatus; breathing apparatus for underwater swimming, breathing apparatus, except for artificial respiration, namely, oxygen breathing units, buoyancy bladders, breathing apparatus for underwater swimming; telephone apparatus; battery jars; anode batteries; galvanic batteries; batteries, electric; computer memory devices; camcorders; video telephones; video screens; viewfinders, photographic; signs, luminous; gas testing instruments; gasometers being measuring instruments; hands-free kits for telephones; wearable video display monitors; electronic numeric displays; electronic interactive whiteboards; electronic notice boards; pressure measuring apparatus; interfaces for computers; calculating machines; pocket calculators; electronic pens being visual display units; computer keyboards; electronic book readers; electronic agendas; mouse pads; marine compasses; computers; laptop computers; tablet computers; notebook computers; wearable computers in the nature of smartwatches, smart glasses, scuba diving computers; battery boxes; diving suits; portable media players; monitors being computer hardware; downloadable computer programs for monitoring gas levels in breathing tanks; headphones; sound recording carriers, namely, blank CDs, pre-recorded CDs featuring music; magnetic data media, namely, blank CDs, pre-recorded CDs featuring music; optical data media in the nature of blank optical data carriers; computer software, recorded, for data management; computer hardware; wrist rests for use with computers; electronic pocket translators; telecommunications transmitters; telephone transmitters; gloves for divers; surveying instruments, namely, plane table; plates for batteries; computer software platforms, recorded or downloadable, namely, software for data management; wafers for integrated circuits; printed circuit boards; protective films adapted for computer screens; protective films adapted for smartphones; personal digital assistants (PDAs); teaching apparatus, namely, electronic pens, teaching robots, downloadable virtual reality software for medical teaching, teaching computer tablets; nautical apparatus and instruments, namely, masks for divers, underwater cameras, underwater computers, underwater tablet computers; audio- and video-receivers; computer software applications in the nature of downloadable software for data management, for underwater computers; computer programs, recorded for data management, for underwater computers; computer game software, recorded or downloadable; downloadable software for data management; computer programs in the nature of downloadable software for data management, for use with underwater computers; computer operating programs, recorded; computer screen saver software, recorded or downloadable; electronic publications, downloadable, in the nature of reports, brochures, reviews in the field of electronics, scuba diving; telecommunications transmitting sets, namely, sound transmitting apparatus, radio wave transmitting aerials, ultrasonic transmitting apparatus; radios; walkie-talkies; hand-held electronic dictionaries; audiovisual teaching apparatus, namely, computers, tablets, electronic writing boards; mobile phones; cordless telephones; interactive touch screen terminals; video recorders; sound reproduction apparatus; data processing apparatus; battery chargers; chargers for electric batteries; data processing equipment, namely, couplers; wearable activity trackers; computer peripheral devices; data processing equipment, namely, optical RFID readers; blank USB flash drives; digital photo frames; cases for smartphones; sleeves for laptops; covers for personal digital assistants (PDAs); covers for tablet computers; covers for smartphones; mobile phone straps; photography screens, namely, digital photo frames