Telephones, Their Construction and Fitting

Telephones, Their Construction and Fitting

Author: Frederick Charles Allsop

Publisher:

Published: 1892

Total Pages: 328

ISBN-13:

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Receivers / transmitters / switch-bells / magneto generator / relays / switches and switch-boards / overhead and earth wires / connecting-up / private exchange systems for hotels and other large buildings / public exchange systems / testing for faults.