Design's impact on logistics /

Eitemau Tebyg

• The bell system and regional business : the telephone in the South, 1877-1920/
  gan: 398392 Lipartito, Kenneth
  Cyhoeddwyd: (1989)
• Telephony and telegraphy : an introduction to instruments and switching systems (Electromechanical and reed-electronic) /
  gan: 400952 Smith, Sydney F.
  Cyhoeddwyd: (1978)
• Telephony and telegraphy A : an introduction to telephone and telegraph instruments and exchanges /
  gan: 400952 Smith, Sydney F.
  Cyhoeddwyd: (1969)
• Subscriber loops and services.
  gan: Institute of Electrical and Electronics Engineers. Communication Society
• Introduction to telephony and telegraphy /
  gan: 460777 Jolley, E. H.
  Cyhoeddwyd: (1968)