Bell's patent 174,465, was issued to Bell on March 7, 1876, by the U.S. Patent Office.
On March 7, 1876, the U.S. Patent Office gave him patent #174465 for the "telephone".
On March 7, 1876, the U.S. Patent Office gave him patent #174465 for the "telephone".
简化句子: Bell's patent 174,465, was issued to Bell on March 7, 1876, by the U.S. Patent Office. 输出: