The invention of Frequency Hopping (10 juin 1941 – 11 août 1941)
Description:
Hedy Lamar and George Antheil sent in their invention called frequency hopping which was also called " the secret communication system" on June 10, 1941. it was then considered and granted on August 11,1942Ajouté au bande de temps:
Date:
10 juin 1941
11 août 1941
~ 2 months and 2 days