WWI (1 янв 1914 г. – 1 янв 1918 г.)
Описание:
Despite the fact that Reginald Fessenden has created the Fessenden Oscillator, it is ignored through WWI even though German U-boats are a threatДобавлено на ленту времени:
Дата:
1 янв 1914 г.
1 янв 1918 г.
~ 4 years