Leon Douglass
American inventor and film maker · United States · On the map · Scientists · Lived 1869 to 1940 · aged 71
Leon Forrest Douglass was an American inventor and co-founder of the Victor Talking Machine Company who registered approximately fifty patents, mostly for film and sound recording techniques.
Text from Wikipedia, CC BY-SA 4.0
Leon Douglass is read about 2 times a day, in 4 languages.
A typical day, 30 days to 14 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?About this person
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1869 to 1940 · aged 71