Robert von Lieben (1878-1913). Physicist
Robert von Lieben (1878-1913). Physicist and inventor of the first electron tube with amplifier effect. About 1930. Photograph
Picture No
10965287
Media ID
46080456
Size
3543px x 4987px
(2.6MB)
Credit
Mary Evans/brandstaetter images
Source
Photograph
Date
1930





























