The invention of Frequency Hopping (10 jun 1941 año – 11 agos 1941 año)
Descripción:
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 11,1942
Añadido al timeline:
fecha:
10 jun 1941 año
11 agos 1941 año
~ 2 months and 2 days