During a study of evolving telephone designs for our new book, my coauthor Russell A. Flinchum and I came across two of Pratt’s distinguished alumni who had connections to the Bell Telephone System.

From an unpretentious Manhattan headquarters, the American Telephone & Telegraph Co. runs a prodigious organization. The Bell System operates more than half of the world’s 208 million phones, reaps ...

Front pages instead of financial sections last week headlined the most important annual report, that of American Telephone & Telegraph Co. Salient facts regarding the Bell system (Western Electric and ...