Bell Telephone Company companies and to provide further funds for expansion of its overall telephone infrastructure. On April 17, 1880, National Bell was split into the American Bell Telephone Company, led by Theodore Vail as general manager, and with the International Bell Telephone Company (IBTC) as a holding company for its international subsidiaries. IBTC's first non-North American subsidiary was the Bell Telephone Manufacturing Company (BTM), established by Hubbard at Antwerp, Belgium, in 1882. The Bell System's Bell Telephone Company of Canada subsidiary, wholly owned by the National Bell, had been established two years earlier. Alexander Graham Bell's ten shares of Bell Telephone Company
New England Telephone and Telegraph Company of an agent of Gardiner Greene Hubbard, the father-in-law of telephone inventor Alexander Graham Bell. New England Telephone and Telegraph merged with the Bell Telephone Company (which was started on the basis of holding "potentially valuable patents"), on February 17, 1879, to form the National Bell Telephone Company, at which time Theodore Vail took over its operations. The National Bell Telephone Company merged with others on March 20, 1880 to form the American Bell Telephone Company. The American Bell Telephone Company was later purchased by its own subsidiary, American Telephone & Telegraph (AT&T) on December 30, 1899. Thus share ownership