articles for covering medical devices and orthopedic equipment worn by patients, namely, cloth and fabric covers for splints, casts and braces; covers and bands for placement about orthopedic supports, crutches, walkers and canes; slings for medical use; orthopedic footwear; equipment and accessories for applying, maintaining and/or removing casts and splints; waterproof covers for protecting wounds, injuries and orthopedic appliances; crutches, canes, walkers, all for medical and invalid use...