The Bell System Technical Journal Lot of 2 individual issues, 1969 Volume 48 numbers 2, 3; February, March 1969.
AT&T BSTJ 1969, February, March; pp. 321-816 in 2 individual issues; diagrams, references.
AT&T BSTJ 1969, February, March; pp. 321-816 in 2 individual issues; diagrams, references.
American Telephone & Telegraph Co, march 1956; pp 249-534; illus, photographs, refs; charts foldouts.
IRE 1949, pp 466 - 592 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issue.
IRE 1949, pp 978 - 1104 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issu.
Institute of Radio Engineers, Western Electronic Show and Convention, San Francisco CA 1957; 209 pages, double-column text, diagrams.
American Telephone & Telegraph, July 1950; pp 295-468; illus, photos, references; light blue paper wraps.
AT&T 1943, pp 145-268 inclusive, references, diagrams.