Magnetic film 17,5 mm and 35 mm; magnetic film 17,5 mm, perforated along one edge, location of erasing, recording and reproducing heads for single and twin tracks— 2 стр.
Studio magnetic film transport for sound recording and sound reproduction; biphase square wave signal for synchronous operation of magnetic film transport and telecines, projectors, video-interfaces or other control systems— 2 стр.