Search examples: Microsoft | 2015 | 2014/10 | 4.12 | 04/20 | 05/26/1980 | Galileo Galilei
  1. Home
  2. Events
  3. Detail of event

1st radio tube made of metal...

event · 01 April 1935 · 90 years ago

1st radio tube made of metal announced, Schenectady, New York

More events on 01 Apr

© 2016 OnThisDay.net All rights reserved.
Loaded in 0.0026s.