1 янв 1921 г. - The first car-to-car radios are used
Описание:
The Detroit Police Department began using mobile radios in their police cars. They used them to talk between cars, but it didn't work very well.Добавлено на ленту времени:
Дата:
1 янв 1921 г.
Сейчас
~ 104 г назад