33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
May 1, 2025
1774592
143998
2

dec 26, 1933 - December 26: FM radio patent granted to American engineer Edwin Howard Armstrong

Added to timeline:

Date:

dec 26, 1933
Now
~ 91 years ago