1) British invention
Found on
https://www.crosswordclues.com/clue/theatrograph
R.W. Paul presented Britain`s second film projector, and the first commercially produced 35mm projector, the Theatrograph, on 20 February 1896. It was first demonstrated at Finsbury Technical College. The use of Paul`s Theatrograph in music halls up and down the country popularised early cinema in Britain. It was first revealed to the public at .....
Found on
http://en.wikipedia.org/wiki/Theatrograph
No exact match found.
