found: Tosiello, R.J. Birth and early years of Bell telephone system, 1979(Bell Telephone Company; in July 1877, the Patent Association was replaced by the Bell Telephone Company. Despite its ability to financially harrass the Bell Company, Western Union was advised to compromise. The removal of the Western Union threat and the organization of the American Bell Telephone Company (1880) with sufficient financial resources marked the end of the formative stages of the telephone's commercial development)
