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Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator

Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator
  • Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator
  • Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator
  • Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator
  • Elements of the Automatic Telephone System 1922 Prepared for the Office of the Chief Signal Operator

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Elements of the Automatic Telephone System Prepared for the Office of the Chief Signal Operator, February 1922, 6x9, 76 pgs, softbound, black/white photos and circuit drawings, US Government Printing Office, War Department Document No.1096, Wire Communication Pamphlet No.11, Washington. Discusses operation of the automatic telephone system including switches and circuits plus the circuit operation of the private automatic telephone system of the Automatic Electric Co. I have additional books about telephony for sale - since shipping is included in the price a discount will apply for multiple purchases shipped together.

Condition: Good condition with uniform tanning of pages throughout. This volume has been recovered (pasted over original cover) by previous owner with title and gift inscription in ink on the front, moderate soil and creasing. Contents are otherwise clean, complete and legible and still quite useful for reference.

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