The EP System: A Projector Cartridge for Audio-Visual Purposes
Jean-Pierre Lavanchy · Journal of the SMPTE · 1967
A group of six European manufacturers of substandard motion-picture equipment has engaged in a cooperative program for the development of a new cartridge for audio-visual purposes. The single-reel cartridge is designed for easy loading, and makes possible fast forward and rapid rewind of the film. It can be made to accommodate 50-, 200- or 400-ft films.