10 equipment for therapeutic purposes, namely therapeutic heat and light devices used in physical therapy; electrical muscle stimulators used in physical therapy; therapeutic exercise equipment used in physical therapy; crutches; splints and braces; special tables, chains, and couches for disabled patients; goniometers, dynamometers, and diagnostic instruments to establish infirmity or capability of patients; wheel chairs, stretchers and mechanical aids for infirm patients; research, diagnostic and testing apparatus, namely treadmills, ergometers, oscillometers, skin thermometers, skin temperature measuring units, stethoscopes, sphygmometers, vitalometers, dry spirometers, dermohmeters, dermohygrometers, audio meters, vitalors, cervigons, pocket steel tapes, respirometers, prismatic glasses and surface pyrometers; occupational therapy equipment, namely suspension arm slings, hand and finger splints, walking parallel bars, staircases, curbs and ramps, suspension ambulators and walkers; hydrotherapy, heat therapy and cold therapy equipment, namely shortwave diathermy, infra-red lamps, bakers, electric heat cabinets, moisture heat therapy units, hydrocolators, paraffin baths, body suspension apparatus, incontinent aids, arm sling suspensions and arm extenders; neurological hammers; self-help and safety devices, namely stocking rollers, bathtub stools, bathtub seats, bathtub hammocks, bed pans; reading aids, namely page turners, book holders and mirrors