WION - #TodayInHistory, 1898: Hannibal Goodwin patents celluloid photographic film
On This Day - ~ #OnThisDay 1887, Hannibal Goodwin Patents Celluloid Photographic Film ~ On This Day on May 02, 1887, Hannibal Williston Goodwin patented a method for making transparent, flexible roll
WION - #TodayInHistory, 1887: Hannibal Goodwin patents
May 2, 1887: Celluloid-Film Patent Ignites Long Legal Battle
May 2, 1887: Celluloid-Film Patent Ignites Long Legal Battle
C is for Celluloid: The Goodwin vs. Kodak patent battle over flexible film - National Science and Media Museum blog
On This Day - ~ #OnThisDay 1887, Hannibal Goodwin Patents Celluloid Photographic Film ~ On This Day on May 02, 1887, Hannibal Williston Goodwin patented a method for making transparent, flexible roll
May 2, 1887: Celluloid-Film Patent Ignites Long Legal Battle
The Beginning of 2D Animation by H.W.Goodwin - Animaders
Hannibal Goodwin, American clergyman
Hannibal Goodwin - Wikipedia