operating tables; accessories for operating tables, namely, head rests, arm rests, leg rests, body supports, body cushions, body straps and restraints, knee crutches, stirrups, tube holders, infusion stands, radial setting clamps, anesthesia screens, instrument trays, table extenders, secretion basins, splash guard covers, paper roll holders, side rails, PVC protective covers, x-ray cassette holders; tables and chairs for the examination and treatment of patients, included in this class; accessories for tables and chairs for the examination and treatment of patients included in this class, namely, head rests, arm rests, leg rests, body supports, body cushions, body straps and restraints, knee crutches, stirrups, tube holders, infusion stands, radial setting clamps, anesthesia screens, instrument trays, table extenders, secretion basins, splash guard covers, paper roll holders, side rails, PVC protective covers, x-ray cassette holders; support arms for supporting, carrying and aligning body parts of patients, namely, head rests, arm rests, leg rests, body supports, body cushions, body straps and restraints, knee crutches, stirrups; support arms for supporting, carrying and aligning medical devices and medical accessories, namely, tube holders, infusion stands, radial setting clamps, anesthesia screens, instrument trays, table extenders, secretion basins, splash guard covers, paper roll holders, side rails, PVC protective covers, x-ray cassette holders; functional furniture for doctors' practices specifically adapted for medical purposes for the treatment of patients and functional furniture for doctors' practices specifically adapted for the treatment of patients; patient stretchers