1993 logo of <a href="https://en.wikipedia.org/wiki/Ameritech" class="extiw" title="w:Ameritech">Ameritech</a> (now known as AT&amp;T Teleholdings, Inc.)
<a href="https://en.wikipedia.org/wiki/Ameritech" class="extiw" title="w:Ameritech">Ameritech</a>
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