5 results Refine Results
  1. 1
    Published 1907
    Subjects “...Telephone systems....”
    Book
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    Principles of central-energy systems : central-energy systems central energy main and branch exchanges common-battery signaling systems bell central-energy system bell trunk circuits bell toll and testing circuits kellogg central-energy system party-line systems exchange wiring and extension telephones ...
  2. 2
    Published 1992
    Subjects “...Telephone Periodicals....”
    Journal
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    Electrical communication.
  3. 3
    Subjects
    Journal
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    Cables & transmission.
  4. 4
    by Wilson, A. C., 1930-
    Published 1994
    Subjects
    Book
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    Wire and wireless : a history of telecommunications in New Zealand, 1860-1987 /
  5. 5
    by Dale, Laurie G.
    Published 2003
    Subjects
    Book
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    Register of datestamps used by New Zealand telegraph & telephone offices which operated independently of a post office /

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