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jan 1, 1921 - The first car-car radios are used

Description:

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.

Added to timeline:

8 Nov 2017
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Cell Phone- Ayman Said

Date:

jan 1, 1921
Now
~ 98 years ago

Images:

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