Atkinson, J.
Telephoney : a detailed exposition of the telephone exchange system of the British Post Office : vol. I, general principles and manual exchange systems. J. Atkinson.[ A new edition of Telephony harbert & procter] - London : Pitman, 1948-1950. - xii, p. : ill. ; 25 cm.
Includes bibliographical references and indexes.
v. 1 General principles and manual exchange systems; v.2 Automatic exchange systems.
273431803
Telephone stations.
621.385 / ATT
Telephoney : a detailed exposition of the telephone exchange system of the British Post Office : vol. I, general principles and manual exchange systems. J. Atkinson.[ A new edition of Telephony harbert & procter] - London : Pitman, 1948-1950. - xii, p. : ill. ; 25 cm.
Includes bibliographical references and indexes.
v. 1 General principles and manual exchange systems; v.2 Automatic exchange systems.
273431803
Telephone stations.
621.385 / ATT