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1 Jan 1921 Jahr - The first car-car radios are used

Beschreibung:

The Detroit Police Department began using mobile radios in their police cars. They used them to talk between police cars, even though it didn't work very well.

Zugefügt zum Band der Zeit:

Cell Phone- Ayman Said

ByAyman
8 Nov 2017
0
0
687

Datum:

1 Jan 1921 Jahr
Jetzt
~ 104 years ago

Abbildungen:

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