Who perfected a process in 1880 for making sensitive gelatine dry plates for photography, and patented photographic roll film in 1884?
who perfected a process in 1880 for making sensitive gelatine dry plates for photography, and patented photographic roll film in 1884
FreebaseQA-train-16187.P0
roll film
roll film
m.017zc4
law.invention.inventor
m.0gc5r
george eastman