Memory Requirements in a Telephone Exchange, in, The Bell System Technical Journal vol 29 no. 3 July 1950 Bell System.
American Telephone & Telegraph, July 1950; pp 295-468; illus, photos, references; light blue paper wraps.
American Telephone & Telegraph, July 1950; pp 295-468; illus, photos, references; light blue paper wraps.
Bell Telephone Laboratories, May 1926, Reprint B-196, originally published in the Bell System Technical Journal, vol V, April 1926, and Transactions of the American Institute of Electrical Engineers, vol 45, 1926; 61 pages, some illustrations and pho.
American Telephone & Telegraph, July 1954; pp 799-1022; illus, photos, refs; light blue paper wraps.
Bell Telephone Laboratories, March 1929, Reprint B-382, reprint of a paper presented at winter convention of AIEE 1929 and published in the Transactions; 10 pages, some illustrations and photographs.
Bell Telephone Systems, 1953, orig. published The Bell System Technical Journal, vol 32, May 1953; separate offprint, Monograph 2123, 8.5x11 large size, pp 1-18.
AT&T, 1978; pp 1 - 219 inclusive; references, illustrations.
AT&T, 1972, pp 1641-1931 inclusive, references, diagrams and photographs.
AT&T 1939, pp 395-545 inclusive, references, diagrams.
AT&T 1939, pp 547-748 inclusive, references, diagrams, photographs.
AT&T 1943, pp 145-268 inclusive, references, diagrams.
AT&T 1943, pp 269-402 inclusive, references, diagrams, photographs.
BSTJ, AT&T, NY 1951; pp 779-1040 inclusive, photographs, diagrams etc.
AT&T, NY 1959, 1,603 pages plus index at rear; also bound-in are contents of monographs; diagrams, photographs, references.
AT&T, October 1971, pp 2495 - 2856 inclusive, references, diagrams.
American Telephone and Telegraph Co., NY 1963, pp 2501-2974 inclusive, diagrams, some photos, references.
American Telephone and Telegraph Co., NY 1965, pp 547-729 inclusive, diagrams, some photos, references.
AT&T, March 1965, pp 373-pp 546 inclusive, references, diagrams.
AT&T 1965, pp 207-372 inclusive, diagrams and photographs, references.
Bell Tel. Labs, NY 1947, 1956, 1963, 43 pages, diagrams, tables, references.
Bell System, November 1970, pp 1995-2415 inclusive, diagrams, references, some photographs.
Bell Telephone Laboratories, November 1926, Reprint B-212, reprint of a paper presented at annual meeting of telegraph and telephone section of the Ameircan Railway Association September1926; and published in their Proceedings; 16 pages, some illustr.
AT&T, issued October 1953, orig. published in The Bell System Technical Journal, vol 32, March 1953; 24 pages plus rear foldout chart.