The invention of Frequency Hopping (10 giug 1941 anni – 11 agos 1941 anni)
Descrizione:
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 11,1942Aggiunto al nastro di tempo:
Data:
10 giug 1941 anni
11 agos 1941 anni
~ 2 months and 2 days