Communication system that transmits sound between distant points.

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Go Historic ID
3648

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Communication system that transmits sound between distant points

Table of Contents

  1. 1.   Overview of Telephone Systems  ← you are here
  2. 2.   Sources for Telephone Systems (1)

Page Info

Title
Telephone Systems
Date Published
December 12, 2012
Last Updated
April 22, 2021