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Charles Williams, Jr.
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Charles Williams, Jr.

American scientist

Learn about this topic in these articles:

development of telephone

  • Alexander Graham Bell and the New York City–Chicago telephone link
    In telephone: Development of the modern instrument

    …common use was introduced by Charles Williams, Jr., in 1882. Designed for wall mounting, this instrument consisted of a ringer, a hand-cranked magneto (for generating a ringing voltage in a distant instrument), a hand receiver, a switch hook, and a transmitter. Various versions of this telephone instrument remained in use…

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