Telephony & telegraphy A : an introduction to telephone and telegraph instruments and exchanges /

Míreanna comhchosúla

• Wireless telegraphy.
  de réir: Eastwood, Eric Sir, 1910-
  Foilsithe / Cruthaithe: (1974)
• Telegraphy /
  de réir: Preece, W. H.
  Foilsithe / Cruthaithe: (1891)
• Telegraphy /
  de réir: Renton, R. N. (Robert Norman)
  Foilsithe / Cruthaithe: (1976)
• The financial history of the American Telephone and Telegraph Company /
  de réir: Stehman, Jonas Warren, 1887-
  Foilsithe / Cruthaithe: (1967)
• Telephony : a detailed exposition of the telephone exchange systems of the British Post Office /
  de réir: Herbert, T. E. (Thomas Ernest), 1875-1943
  Foilsithe / Cruthaithe: (1948)