9 Scientific, nautical, surveying, photographic, cinematographic, optical, signaling, checking (supervision) and life-saving apparatus and instruments, namely, scuba diving masks, scuba snorkels, scuba goggles, buoyancy compensator devices; teaching apparatus and instruments, namely, electronic sports training simulators; Calculating machines; Data processing equipment; Computers; fire-extinguishing apparatus; Sensors and devices for measuring pressure; Compasses for measuring; Pressure measuring apparatus; Sensors and devices for measuring depth; underwater acoustic detecting apparatus; underwater sonar surveying apparatus; Signaling buoys for diving; Surface marker buoys and lifting bags for divers and for watersports; underwater cameras; underwater telephones; location detection apparatus for locating scuba divers using radio waves, GPS; smart watches; wrist top computers; Computer software, for logging dives, logging dive data, visualizing dive data, storing diving maps; computer bags; dive computers; underwater dive computers; batteries; buoyancy bladders for diving; Buoyancy compensator devices for divers; scuba equipment and apparatus, namely, scuba goggles, scuba diving masks, air tanks for scuba diving, buoyancy compensator devices; buoyancy jackets for diving; breathing apparatus for underwater diving; gas regulators for underwater diving and breathing apparatus; high-pressure and low-pressure hoses for divers used with underwater breathing apparatus; over-pressure valves used with underwater breathing apparatus; corrugated hoses for diving regulators used with underwater breathing apparatus; valves for respiration apparatus used with underwater breathing apparatus; pressure valves used with underwater breathing apparatus; air regulators for divers used with underwater breathing apparatus; gas canisters for diving used with underwater breathing apparatus; air tanks; air tanks for use in scuba diving; scuba diving weights; diving equipment, namely, scuba diving masks, air tanks for scuba diving, buoyancy compensator devices; stabilizing jackets used in scuba diving to offset buoyancy; weight belts for scuba diving; snorkels; diving helmets; masks for water sports; divers' masks; protective goggles for watersports; mouthpieces being part of an underwater breathing apparatus for water sports; nose clips for divers and swimmers; gloves for divers; safety clothing for protection against accident or injury; protective clothing for protection against accidents and injury for watersports and diving; safety footwear for protection against accidents and injury; safety headgear for protection against accidents and injury; reflective safety vests; optical glasses; sunglasses; life jackets; inflatable life jackets; maritime rescue apparatus, namely, life preservers, life buoy; protective and safety equipment, namely, life preservers, life buoy; safety monitoring apparatus, namely, breathing gas level monitors; rescue laser signaling flares; ring buoys for use in water rescue; safety alarms, namely, alarms to warn divers of oxygen levels; safety signals, namely, signal bells; safety signals, namely, rescue laser signaling flares; beacon lights; audible safety signals in the nature of whistle alarms