1896, and the Afterlife of the ‘Master Patent’. William Friese-Greene: Close-Up, Part 9

As shown towards the end of this post, with a 1900 patent Friese-Greene had a suggestion for a smallish portable projection viewing box. His film device was for domestic, or coin operated, use. The general idea would later be developed by others, for salesmen to display items to their clients, as this Kodak advertisement shows.