prosthetics and orthotic appliances, namely upper and lower extremity fittings, myoelectric and conventional arms, immediate postoperative prostheses, ischial containment sockets, flexible sockets, energy storing feet, high-heeled feet, sports designs including waterproof swimming and skiing prostheses, cosmetic coverings, cervical and spinal braces, body jackets, corsets, hip abduction braces, elbow braces, hernia trusses, knee braces, A.F.O./K.A.F.O. braces, fracture braces, compression stockings, arch supports, pediatric braces, and thermoplastic fabrications for the extremities and parts thereof including legs, knees, ankles, feet, arms, forearms and hands, and accessories for transporting the above