(Seeing in the first month, the ninth day), February 14, 1875, the Bell telephone patents. June

1875, American Alexander Graham Bell (Bell, Alekander Graham) invented the telephone. The door since Boston Court Road No. 109, still pinned block engrave are: June 2, 1875, was born here in the bronze medal. In 14,
1876 Bell famous and Watson has been studying the device - telephone patent application. Similar device patent application submitted to the U.S. Patent Office the same day, another inventor Gray (1835-1901), only a few hours late Yinbibeier lost telephone invention rights. Bell telephone patents certificate.
1876, 10, 2009, Bell was not careful when doing experiments to sulfuric acid spilled on his lap, pain He cried: "Mr. Watson, come help me! "I never expected this sentence spread to the ears of his assistant Watson's work in another room by the phone in the experiment. This is very common, became human by a telephone transmission of voice recorded in history.