Showing 1 - 2 results of 2 for search '"telegraphy"', query time: 0.12s Refine Results
  1. 1
    The Development of wireless to 1920 /
    Published 1977
    Table of Contents: “... telegraphy.--Marconi, G. Wireless telegraphic communication.--Braun, C. F. Electrical oscillations...”
    Book
  2. 2
    The Telephone : an historical anthology /
    Published 1977
    Table of Contents: “.... Experimental researches in electro-harmonic telegraphy and telephony.--Taylor, L. W. The untold story...”
    Book
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