9 Adders, namely, calculators, electronic accumulators; acoustic couplers; alarm and signal devices for use in medical devices, namely, balance prostheses; analysis devices for analyzing data of patients position; antennae for use with receiver as part of positional balance prosthesis; electric apparatus for recording data from a positional balance prosthesis; apparatus for recording of distances, as part of the positional balance prosthesis; electric batteries; optical glasses; optical frames; spectacle lenses; CD players; integrated circuit chips; blank CD-ROMS for permanent storage; blank compact-disks for recording audio or images; computers; computer system software for use with positional balance prosthesis; peripheral devices for computers; saved computer programs for use in positional balance prosthesis; downloadable computer programs for use in positional balance prosthesis; computer keyboards; data processors; position detectors, for use with positional balance prosthesis; software disks featuring instructions for use with positional balance prosthesis; disk drives for computers; DNA chips; pressure recorders; DVD players; electric wires; electric cables; teletypewriters; remote control devices, for operating positional balance prosthesis, frequency meter; printed circuits; wrist rests for use with computers; audio cassette players; headphones; chargers for electric accumulators; positional balance prosthesis teaching apparatus and instruments in the nature of a prosthesis backpack; antenna parameter measuring apparatus, instruments for measuring distance; tape rulers for use in a positional balance prosthesis; scales; mouse pads; membranes for scientific apparatus, namely, acoustic membranes; electric measuring devices, namely, electronic sensors for measuring the position of a person; microprocessors; computer monitors; notebook computers; optical apparatus and instruments, namely, optical cables, optical disc drives: blank optical data carriers; fiber optic cables; precision measuring devices, namely, electronic sensors for positional measurements; radios; data processing scanners; sound membranes, namely, acoustic membranes; sound measuring devices, namely, sound meters for use with positional balance prosthesis; electric switches; electric switching devices, namely, differential switches, mechanical signs; step counters, namely, pedometers; hard hats; life belts, namely, belts worn to carry a positional balance prosthesis; radio transmitters, emergency signal transmitters; telecommunication transmitters, namely, emergency signal transmitters; transmitters for electronic signals, namely, signals of a persons position; combined safety belts excluding those for vehicle seats and sport equipment, for use with positional balance prosthesis; mechanical signal units, namely, devices for providing a signal tone for use with positional balance prosthesis; sensors for scientific purposes, namely, sensors for use in a positional balance prosthesis; sunglasses; electric meters, namely, voltage meters; storage for data processing devices, namely, blank tapes for storage of computer data; special garment for laboratories; special furniture for laboratories; sports glasses; electric buzzers; pocket calculators; protective gloves; sensors for medical purposes, namely, ultrasonic sensors, timing sensors, positional sensors; eyeglasses for equilibrium rehabilitation