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A. T. & T. because it was developed at Bell Labs.

However Bell Labs no longer exists and A. T. & T. has been sold several times and is no longer the same company, but all its trademarks were sold with it.

I'm not sure what company now owns A. T. & T.

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Omer Bechtelar

Lvl 10
3y ago

What else can I help you with?

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