Telephony : a detailed exposition of the telephone exchange system of the British Post Office /
Atkinson, J.
Telephony : a detailed exposition of the telephone exchange system of the British Post Office / J. Atkinson ; T. E. Herbert ; W. S. Procter - London : Pitman, 1950 [Reprinted 1972]. - V. : ill. ; 25 cm.
Includes bibliographies and index.
V-1.-- General principles and manual exchange systems; V-2.-- Automatic exchange systems.
0273431811
Telephone stations.
621.385 / ATT 1972
Telephony : a detailed exposition of the telephone exchange system of the British Post Office / J. Atkinson ; T. E. Herbert ; W. S. Procter - London : Pitman, 1950 [Reprinted 1972]. - V. : ill. ; 25 cm.
Includes bibliographies and index.
V-1.-- General principles and manual exchange systems; V-2.-- Automatic exchange systems.
0273431811
Telephone stations.
621.385 / ATT 1972