Telephony ; a detailed exposition of the telephone exchange systems of the British post office /

Bibliographic Details
Main Author:	Herbert, Thomas Ernest, 1875-1943
Other Authors:	Procter, William Skirrow, Atkinson, James (Engineer)
Format:	Book
Language:	English
Published:	London : I. Pitman, 1948-1950.
Edition:	A new ed. of Telephony
Subjects:	Telephone > Great Britain.

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