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

類似資料

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