29-year-old Alexander Graham Bell received a patent for his revolutionary new invention--the telephone on March 7, 1876. With the help of Thomas A. Watson, Bell developed a prototype. Three days after filing the patent, the telephone carried its first intelligible message--the famous "Mr. Watson, come here, I need you"--from Bell to his assistant. At the same time, Western Union Telegraph Company employed Gray and fellow inventor Thomas A. Edison to develop their own telephone technology. Bell sued, and the case went all the way to the U.S. Supreme Court, which upheld Bell's patent rights. In the years to come, the Bell Company withstood repeated legal challenges to emerge as the massive American Telephone and Telegraph (AT&T).
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