The telephone: an account of the phenomena of electricity, magnetism, and sound, as involved in its action. With directions for making a speaking telephone

Eitemau Tebyg

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  gan: Jones, Bernard Edward, 1879-
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• American telephone practice
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  Cyhoeddwyd: (1900)
• Proceedings of the Select Committe on Telephone Systems
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• Telephone cables; a handbook of the design, construction and maintenance of the telephone cable plant
  gan: Slippy, John Clifford, 1884-
  Cyhoeddwyd: (1913)
• Telephone law; the organization and operation of telephone companies
  gan: McMillian, Archibald Harold, 1876-
  Cyhoeddwyd: (1908)