A lighttight box, for automatically delivering a photosensitive sheet of photographic film to an exposure station, and for positively removing the film from the exposure station and returning it to the box. The box includes a lid movable between a closed lighttight position and a fully open position....http://www.google.es/patents/US5046716?utm_source=gb-gplus-sharePatente US5046716 - Lighttight film box having a film clasping tray
