Education
He was educated at Oberlin College, where he paid for his keep and tuition by working as a carpenter. On leaving college Gray started to experiment with electricity, turning his attention to the improvement of the telegraph.
He was educated at Oberlin College, where he paid for his keep and tuition by working as a carpenter. On leaving college Gray started to experiment with electricity, turning his attention to the improvement of the telegraph.
In the course of the litigation the United States Patent Office was accused of corruption, but the charge was not upheld. In 1893 the Supreme Court finally ruled in favor of Bell. His patent had been issued Mar. 7, 1876.
In 1867 he patented his self-adjusting telegraph relay
he invented the telegraphic switch and annunciator for hotels, the telegraphic repeater, and the private telegraph line printer
On February 14, 1876, both Gray and Alexander Graham Bell filed patent accounts dealing with the invention of the telephone, and prolonged litigation resulted.
